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2022-11-09: What If Humanity Is Among The First Spacefaring Civilizations?

  • 06:37: ... the hard steps model lets us write down a mathematical function for the appearance rate of life that depends on a simple ...
  • 18:50: ... it turns out that the mathematical description implied by this interpretation is equivalent to standard ...
  • 06:37: ... the hard steps model lets us write down a mathematical function for the appearance rate of life that depends on a simple ...
  • 18:50: ... it turns out that the mathematical description implied by this interpretation is equivalent to standard ...
  • 06:37: ... the hard steps model lets us write down a mathematical function for the appearance rate of life that depends on a simple parameter - the ...

2022-10-26: Why Did Quantum Entanglement Win the Nobel Prize in Physics?

  • 17:55: ... laid out in full, even though you couldn’t  necessarily follow the math. ...
  • 18:57: ... - but more likely that’s just an artifact of extending the math too ...
  • 03:07: Quantum systems are described by a mathematical object called the wavefunction, which evolves according to the Schrodinger equation.

2022-09-28: Why Is 1/137 One of the Greatest Unsolved Problems In Physics?

  • 13:15: ... be that the fine structure constant is not a physical constant, but a mathematical one, like pi, but perhaps we haven't realized this is the case because ...

2022-09-21: Science of the James Webb Telescope Explained!

  • 14:45: ... testable prediciton, people are starting to take the prodigious math developed for the theory and apply it to other places - including back ...
  • 17:43: Just ask a mathematician.

2022-08-24: What Makes The Strong Force Strong?

  • 10:28: ... mathematics used to describe this system just happen to be the same as the ...
  • 13:56: ... combinations are neutral, like black and white for example, you get this mathematical ...
  • 10:28: ... mathematics used to describe this system just happen to be the same as the ...

2022-08-17: What If Dark Energy is a New Quantum Field?

  • 01:41: ... of dark energy accelerates expansion requires a dive into the hairy math of general relativity - and we tried that in a couple of previous ...

2022-08-03: What Happens Inside a Proton?

  • 00:22: ... universe operates. It helps that a lot  of those rules seem to be mathematical.   By writing down the laws of physics as  equations, we can make ...

2022-07-20: What If We Live in a Superdeterministic Universe?

  • 06:36: ... derived a mathematical statement - the Bell inequality that is true in the case that the ...

2022-06-30: Could We Decode Alien Physics?

  • 15:41: ... occurred to? One of the   greatest savants of 20th century math and physics, John von Neumann. He came up with the ...
  • 07:38: ... will be pointing in the direction of the force.   Mathematically we calculate the force using  something called the cross product. ...

2022-06-15: Can Wormholes Solve The Black Hole Information Paradox?

  • 07:24: ... tidal wave of math in these papers  pulls ideas from string theory, ...
  • 11:25: ... you’d expect their effect to disappear, but amazingly, the math stays different. The mere   possibility of a wormhole ...
  • 12:40: ... any idea. More work is needed to translate   this crazy math into a physical picture -  if that’s even possible. But the ...
  • 11:25: ... you’d expect their effect to disappear, but amazingly, the math stays different. The mere   possibility of a wormhole connection ...
  • 10:06: ... computing the von Neumann entropy, there is a neat mathematical trick you can do.   For some reason, it turns out that it's ...
  • 13:07: ... really been solved? Well the community is divided. Some of the mathematical   tricks that were used have invited skepticism. Regardless, these ...

2022-06-01: What If Physics IS NOT Describing Reality?

  • 11:24: ... independent of the observer. Rather,  the wavefunction and the math that governs it   describe our information about the  ...
  • 00:25: ... is physics really trying to do? Is it to find  the mathematical laws that govern the universe?   Not quite - no one has to ...
  • 11:24: ... one thing to use quantum information theory  as a mathematical tool, but quite another to claim   that information is somehow ...
  • 00:25: ... is physics really trying to do? Is it to find  the mathematical laws that govern the universe?   Not quite - no one has to ...
  • 11:24: ... one thing to use quantum information theory  as a mathematical tool, but quite another to claim   that information is somehow ...
  • 00:25: ... is physics really trying to do? Is it to find  the mathematical laws that govern the universe?   Not quite - no one has to solve ...
  • 11:24: ... one thing to use quantum information theory  as a mathematical tool, but quite another to claim   that information is somehow a ...
  • 00:25: ... put it well “The laws of nature which   we formulate mathematically in quantum theory deal  no longer with the particles themselves but ...

2022-05-25: The Evolution of the Modern Milky Way Galaxy

  • 18:41: ... The answer is kind of, yes. You can interpret the  math that way. There is a valid interpretation of   general ...

2022-05-04: Space DOES NOT Expand Everywhere

  • 03:48: ... just for laughs let’s look at the math. This is the FLRW metric - it’s basically Pythagorus for 4-D spacetime - ...

2022-04-27: How the Higgs Mechanism Give Things Mass

  • 07:46: Easy stuff, right? In that case  you won’t mind seeing the math.

2022-03-30: Could The Universe Be Inside A Black Hole?

  • 00:28: Both of these involve matter being packed to infinite densities - they are singularities where the mathematics of GR breaks down.
  • 00:41: ... have mathematical similarities to ech other that have led some physicists to believe that ...
  • 05:50: We’ll need to make the black hole interior mathematically indistinguishable from a universe for somebody inside that black hole.
  • 08:15: ... very first “realistic” mathematical description of a black hole formation was discovered in 1939 by Robert ...
  • 00:41: ... have mathematical similarities to ech other that have led some physicists to believe that ...
  • 08:15: ... very first “realistic” mathematical description of a black hole formation was discovered in 1939 by Robert ...
  • 00:41: ... have mathematical similarities to ech other that have led some physicists to believe that the big bang ...
  • 05:50: We’ll need to make the black hole interior mathematically indistinguishable from a universe for somebody inside that black hole.
  • 00:28: Both of these involve matter being packed to infinite densities - they are singularities where the mathematics of GR breaks down.

2022-03-23: Where Is The Center of The Universe?

  • 06:34: ... the radial dimension of this expanding hypersphere is represented in the math by the scale factor - and the scale factor increases as time ...
  • 10:03: The math of the FLWR metric and the Friedman equations tell us that as time approaches zero, the distance between any two points approaches zero.
  • 10:23: Well the size of the universe at t=0 is zero times infinity … which is neither zero nor infinity - it’s the point where the math breaks.
  • 10:34: And that’s the nature of singularities - they are discontinuities in the math we use to describe the universe.
  • 10:23: Well the size of the universe at t=0 is zero times infinity … which is neither zero nor infinity - it’s the point where the math breaks.
  • 03:22: ... Friedman - he ignored all those little gravitational bumps - doing the mathematical equivalent of grinding up everything into the universe into a fine paste ...

2022-03-16: What If Charge is NOT Fundamental?

  • 00:37: The math that describes it - Maxwell's equations  or quantum electrodynamics - seem to wrap it up nicely.
  • 05:13: ... as regular quantum spin, this new property seemed to obey the math for our old friend electric ...
  • 02:49: ... by a property  analogous to spin, governed  by analogous mathematics. ...
  • 05:13: ... the same way that isospin followed the same mathematics as regular quantum spin, this new property seemed to obey the math for ...
  • 07:27: He recognized that these patterns were actually representations of a mathematical symmetry known as SU(3).
  • 08:12: So after all this hard thinking it turns out that isospin and hypercharge were as much mathematical abstractions as was electric charge.
  • 07:27: He recognized that these patterns were actually representations of a mathematical symmetry known as SU(3).
  • 08:12: So after all this hard thinking it turns out that isospin and hypercharge were as much mathematical abstractions as was electric charge.
  • 07:27: He recognized that these patterns were actually representations of a mathematical symmetry known as SU(3).
  • 02:49: ... by a property  analogous to spin, governed  by analogous mathematics. ...
  • 05:13: ... the same way that isospin followed the same mathematics as regular quantum spin, this new property seemed to obey the math for ...

2022-02-16: Is The Wave Function The Building Block of Reality?

  • 05:44: ... is a non-linear process and it’s non-reversible. It’s not part of the math of the Schrodinger ...

2022-02-10: The Nature of Space and Time AMA

  • 00:03: ... imperatives are a kind of stories there are ways of visualizing the math and one story isn't typically not the unique and only way to do it so ...

2022-01-27: How Does Gravity Escape A Black Hole?

  • 15:19: This is a case of me blithely repeating something I heard once without checking the math.
  • 15:27: We check a lot of math on this show, but I guess sometimes something sneaks through.

2022-01-12: How To Simulate The Universe With DFT

  • 01:12: But for almost every practical use you’d need to do that math for multiple quantum particles interacting - and then the blackboard doesn’t cut it.

2021-12-20: What Happens If A Black Hole Hits Earth?

  • 18:51: ... onto the comments to say hi. If you want your mind blown by the best math-inspired computer graphics, including various many-dimensional geometries, I ...

2021-12-10: 2021 End of Year AMA!

  • 00:02: ... to understand that virtual particles are not real uh rather they're a mathematical tool that's used to represent the behavior of the quantum field um ...

2021-11-17: Are Black Holes Actually Fuzzballs?

  • 07:40: ... year after the Strominger-Vafa result, Samir Mathur at Ohio State dug into that model to see if it could reproduce ...
  • 08:45: ... while he was exploring stringy black holes, Samir Mathur found that the strings that formed the black hole would increase in size ...

2021-11-02: Is ACTION The Most Fundamental Property in Physics?

  • 15:58: ... useful. All great discoveries came from perspective shifts. But there is math behind it also, which I understand is based on set theory and ergodic ...
  • 16:26: ... of the math - Corbin Simpson and Skooks say that constructor theory sounds like ...
  • 17:54: ... quantum etc.) then constructor theory gives us insights as to what math is possible, and what math should be restricting our ...
  • 16:26: ... of the math - Corbin Simpson and Skooks say that constructor theory sounds like ...
  • 18:13: ... error - we come at in from the other direction and ask what sub-realm of math-space we should be looking at given what we know with certainty is possible ...

2021-10-20: Will Constructor Theory REWRITE Physics?

  • 02:25: In the mechanistic approach the fundamentals are the mathematical descriptions of how a process occurs.
  • 07:21: ... we carve off all the “can’ts” from the marble block of all possible mathematics. ...
  • 02:25: In the mechanistic approach the fundamentals are the mathematical descriptions of how a process occurs.
  • 07:21: ... we carve off all the “can’ts” from the marble block of all possible mathematics. ...

2021-10-05: Why Magnetic Monopoles SHOULD Exist

  • 03:54: ... said that "Everything not forbidden is compulsory." meaning that if the math of our physical theory allows it, then it exists in ...
  • 05:37: The great Paul Dirac had a habit of discovering particles just by staring at the math.
  • 16:00: ... in it, although as far as I know no-one has actually disputed the math. ...
  • 02:22: The non-existence of magnetic monopoles is codified in the mathematics of electrodynamics.
  • 07:56: ... is fundamentally unobservable, and Dirac argued that this makes it a mathematical figment, kind of like virtual ...
  • 02:22: The non-existence of magnetic monopoles is codified in the mathematics of electrodynamics.
  • 02:37: The divergence is just this mathy term for the amount that a field points inward toward a sink or outward toward a source.

2021-09-21: How Electron Spin Makes Matter Possible

  • 07:22: ... and the Pauli exclusion principle. Now all we need is to do is the math. ...
  • 05:59: ... they actually cancel each other out and you effectively have no photons. Mathematically, a half-cycle phase shift corresponds to putting a negative sign in front ...

2021-08-10: How to Communicate Across the Quantum Multiverse

  • 02:29: ... are other ways to interpret the math of quantum mechanics that don’t require a multiverse. For example ...
  • 02:56: ... is exactly that - it’s a story about what's really happening behind the math - what “physical” mechanisms give rise to the equations of quantum ...
  • 08:55: ... in exactly 11 lines of math, Polchinski shows that this conspiracy is delicate. Almost ANY deviation ...
  • 12:00: ... real math is quite a bit more complicated, but I've given you a sense of it. In ...
  • 02:56: ... is exactly that - it’s a story about what's really happening behind the math - what “physical” mechanisms give rise to the equations of quantum ...
  • 08:55: ... in exactly 11 lines of math, Polchinski shows that this conspiracy is delicate. Almost ANY deviation from ...

2021-07-07: Electrons DO NOT Spin

  • 07:30: ... of electrons.   The wavefunction became a very strange mathematical object called a spinor,  which had been invented just a decade ...

2021-06-23: How Quantum Entanglement Creates Entropy

  • 04:50: ... his invention “entropy”   after talking to the great Hungarian mathematician and physicist John von Neumann. Supposedly, Von   Neumann said ...

2021-06-16: Can Space Be Infinitely Divided?

  • 06:39: ... one last dip into the math to see how big this uncertainty is. Space is stretched   ...
  • 01:16: ... by   thinking about hot pokers. He found the  long-sought mathematical description of   blackbody, or thermal radiation - by ...
  • 03:47: ... uncertainty principle. Bare  with me though with just a touch of mathematics. ...
  • 01:16: ... by   thinking about hot pokers. He found the  long-sought mathematical description of   blackbody, or thermal radiation - by ...
  • 03:47: ... uncertainty principle. Bare  with me though with just a touch of mathematics. ...

2021-05-25: What If (Tiny) Black Holes Are Everywhere?

  • 11:04: Now feel free to do the math yourself and tell me I’m wrong.
  • 00:41: At least, that’s the black hole as it appears in the mathematics of Einstein’s general theory of relativity.
  • 04:26: ... Hawking made that assumption, it enabled him to mathematically connect the high-gravity region near the black hole with a very distant ...
  • 00:41: At least, that’s the black hole as it appears in the mathematics of Einstein’s general theory of relativity.

2021-03-23: Zeno's Paradox & The Quantum Zeno Effect

  • 12:45: ... to a library of lectures about anything that interests you...science, math, history, literature, or even how to cook, play chess, or become a better ...
  • 00:45: Nowadays, most physicists and mathematicians don’t really see Zeno’s arrow as paradoxical.
  • 01:07: That’s what a mathematician might tell you - but quantum mechanics also has a thing or two to say about extremely tiny distances and time intervals.
  • 00:45: Nowadays, most physicists and mathematicians don’t really see Zeno’s arrow as paradoxical.

2021-03-16: The NEW Crisis in Cosmology

  • 13:38: ... through time at the speed of light its just one way to interpret the math of special   relativity. In relativity, there's this ...
  • 14:47: ... it.  But if you want a much better description   of the math, check out Sabine Hossenfelder's episode on this - link in the ...

2021-02-24: Does Time Cause Gravity?

  • 05:15: There's a certain way of interpreting the math of relativity that says that everything travels at the speed of light.

2021-02-10: How Does Gravity Warp the Flow of Time?

  • 11:29: ... is closer to reality - they are, in a sense, just our way to map the math to our ...

2021-01-26: Is Dark Matter Made of Particles?

  • 07:25: This is a weird little particle that popped up in the math when physicists were trying to solve another mystery of physics - the so-called CP problem.
  • 06:25: The other delves deep into theory - in speculative mathematics beyond the standard model for signs of new particles.

2021-01-19: Can We Break the Universe?

  • 14:28: ... the more we realize that the stories we tell to make sense of the math are just models to help our intuition, and that strikingly ...

2020-12-15: The Supernova At The End of Time

  • 13:09: In the comments, Kevin Mathewson put it very succinctly, so I'm just going to read Kevin's comment.

2020-11-04: Electroweak Theory and the Origin of the Fundamental Forces

  • 00:20: And how do the forces of nature arise from mathematical symmetries in the first place?

2020-10-27: How The Penrose Singularity Theorem Predicts The End of Space Time

  • 02:16: ... towards each   other on a perfect collision course, the  math has to land them all in the ...
  • 04:06: ... what did Penrose discover? How did he manage to peer into the mathematical heart of the black   hole? And why did this deserve a Nobel ...

2020-09-28: Solving Quantum Cryptography

  • 00:00: ... and your old fanfiction-heavy livejournal are both one tiny math problem away from becoming public ...
  • 00:10: ... math problem is prime number factoring, and the new era of quantum computers ...
  • 09:30: ... gets its name from cryptographer Robert McEliece, who developed the hard math problem back in the ...
  • 00:00: ... and your old fanfiction-heavy livejournal are both one tiny math problem away from becoming public ...
  • 00:10: ... math problem is prime number factoring, and the new era of quantum computers may lay ...
  • 09:30: ... gets its name from cryptographer Robert McEliece, who developed the hard math problem back in the ...
  • 03:17: That’s a mathematical operation that’s very easy to figure out in one direction, but very difficult to reverse.
  • 01:08: ... in 1994, a mathematician named Peter Shor developed an algorithm - Shor’s algorithm - that could ...
  • 04:40: ... similar to one that was developed over 2,000 years ago by the Greek mathematician ...
  • 06:02: ... 18th century mathematician Leonhard Euler figured this structure extends to numbers that are the ...
  • 13:51: Mathematicians and cryptographers have decades of security to point to as proof of their encrypting and decrypting abilities.
  • 04:40: ... similar to one that was developed over 2,000 years ago by the Greek mathematician Eratosthenes. ...
  • 06:02: ... 18th century mathematician Leonhard Euler figured this structure extends to numbers that are the multiple of ...
  • 01:08: ... in 1994, a mathematician named Peter Shor developed an algorithm - Shor’s algorithm - that could use a ...
  • 13:51: Mathematicians and cryptographers have decades of security to point to as proof of their encrypting and decrypting abilities.

2020-09-21: Could Life Evolve Inside Stars?

  • 12:00: Many of you mentioned Sabine Hossenfelder, whose book Lost in the Math was a big part of highlighting this issue of excessive dependence on beauty.
  • 13:02: So we should try to learn from the past successes of this pursuit of beauty in math, as well as its failures.
  • 12:21: ... see a real problem with the excessive weight placed on the importance of mathematical beauty, by some, perhaps by many, in the theory-of-everything ...
  • 12:50: ... of the likes of Einstein and Dirac that physical law should be mathematically ...
  • 12:21: ... see a real problem with the excessive weight placed on the importance of mathematical beauty, by some, perhaps by many, in the theory-of-everything ...
  • 12:50: ... of the likes of Einstein and Dirac that physical law should be mathematically ...

2020-09-08: The Truth About Beauty in Physics

  • 03:44: But let’s think about some of the ways in which math can be considered beautiful.
  • 11:05: String theorists find their math beautiful, even if it is far from being simple.
  • 00:20: ... don’t need to choose between beauty and truth - there’s this idea that mathematical beauty is a powerful guiding force towards truth - the more beautiful ...
  • 00:57: ... - and misguided by this abstract notion of beauty in trying to guess the mathematical behavior of the ...
  • 01:49: It turns out both Ptolemy and Copernicus were lured by the same bias towards beauty - here, the mathematical perfection of the circle.
  • 03:13: Ptolemy, Copernicus, Kepler, Newton, Einstein - each followed their own sense of mathematical beauty in this long quest to understand gravity.
  • 03:33: To understand that, we need to think about what mathematical beauty even means.
  • 03:48: ... Ptolemy and Copernicus it was a sense that certain mathematical forms are intrinsically more beautiful or perfect than others - in their ...
  • 04:47: ... a compact expression - a small number of physical properties linked in a mathematically simple ...
  • 05:20: ... can describe any complex phenomenon with a mathematical model if you’re willing to give your model enough moving parts - but ...
  • 06:15: So is base reality represented by the simplest possible interaction or relationship, expressible with the simplest conceivable mathematical statement?
  • 06:26: And if so, does pursuing mathematical parsimony guide us inexorably towards the most elementary driving forces?
  • 07:38: But if a physical law is mathematically ugly, then you can be sure it’s wrong, experiment or no.
  • 07:44: Dirac’s most famous result came from exactly this pursuit of mathematical beauty.
  • 08:45: ... pursuit of pure mathematical elegance led him to predict the existence of antimatter, which was ...
  • 08:58: Nobel laureate physicist Frank Wilcek talks about a form of mathematical beauty that he calls the exuberance of a theory - its productivity.
  • 11:01: This seemed too mathematically neat to be a coincidence.
  • 11:54: ... perhaps mathematical beauty and convergence DOES provide a reliable indicator that we’re ...
  • 12:11: And so perhaps the mathematical wonders of string theory DO reflect something true about reality, but we’re struggling with how to interpret it all.
  • 00:20: ... don’t need to choose between beauty and truth - there’s this idea that mathematical beauty is a powerful guiding force towards truth - the more beautiful ...
  • 00:57: ... - and misguided by this abstract notion of beauty in trying to guess the mathematical behavior of the ...
  • 01:49: It turns out both Ptolemy and Copernicus were lured by the same bias towards beauty - here, the mathematical perfection of the circle.
  • 03:13: Ptolemy, Copernicus, Kepler, Newton, Einstein - each followed their own sense of mathematical beauty in this long quest to understand gravity.
  • 03:33: To understand that, we need to think about what mathematical beauty even means.
  • 03:48: ... Ptolemy and Copernicus it was a sense that certain mathematical forms are intrinsically more beautiful or perfect than others - in their ...
  • 05:20: ... can describe any complex phenomenon with a mathematical model if you’re willing to give your model enough moving parts - but ...
  • 06:15: So is base reality represented by the simplest possible interaction or relationship, expressible with the simplest conceivable mathematical statement?
  • 06:26: And if so, does pursuing mathematical parsimony guide us inexorably towards the most elementary driving forces?
  • 07:44: Dirac’s most famous result came from exactly this pursuit of mathematical beauty.
  • 08:45: ... pursuit of pure mathematical elegance led him to predict the existence of antimatter, which was ...
  • 08:58: Nobel laureate physicist Frank Wilcek talks about a form of mathematical beauty that he calls the exuberance of a theory - its productivity.
  • 11:54: ... perhaps mathematical beauty and convergence DOES provide a reliable indicator that we’re ...
  • 12:11: And so perhaps the mathematical wonders of string theory DO reflect something true about reality, but we’re struggling with how to interpret it all.
  • 00:20: ... don’t need to choose between beauty and truth - there’s this idea that mathematical beauty is a powerful guiding force towards truth - the more beautiful the ...
  • 03:13: Ptolemy, Copernicus, Kepler, Newton, Einstein - each followed their own sense of mathematical beauty in this long quest to understand gravity.
  • 03:33: To understand that, we need to think about what mathematical beauty even means.
  • 07:44: Dirac’s most famous result came from exactly this pursuit of mathematical beauty.
  • 08:58: Nobel laureate physicist Frank Wilcek talks about a form of mathematical beauty that he calls the exuberance of a theory - its productivity.
  • 11:54: ... perhaps mathematical beauty and convergence DOES provide a reliable indicator that we’re moving in ...
  • 00:57: ... - and misguided by this abstract notion of beauty in trying to guess the mathematical behavior of the ...
  • 08:45: ... pursuit of pure mathematical elegance led him to predict the existence of antimatter, which was discovered ...
  • 03:48: ... Ptolemy and Copernicus it was a sense that certain mathematical forms are intrinsically more beautiful or perfect than others - in their case ...
  • 05:20: ... can describe any complex phenomenon with a mathematical model if you’re willing to give your model enough moving parts - but that ...
  • 06:26: And if so, does pursuing mathematical parsimony guide us inexorably towards the most elementary driving forces?
  • 01:49: It turns out both Ptolemy and Copernicus were lured by the same bias towards beauty - here, the mathematical perfection of the circle.
  • 06:15: So is base reality represented by the simplest possible interaction or relationship, expressible with the simplest conceivable mathematical statement?
  • 12:11: And so perhaps the mathematical wonders of string theory DO reflect something true about reality, but we’re struggling with how to interpret it all.
  • 04:47: ... a compact expression - a small number of physical properties linked in a mathematically simple ...
  • 07:38: But if a physical law is mathematically ugly, then you can be sure it’s wrong, experiment or no.
  • 11:01: This seemed too mathematically neat to be a coincidence.
  • 04:47: ... a compact expression - a small number of physical properties linked in a mathematically simple ...
  • 07:38: But if a physical law is mathematically ugly, then you can be sure it’s wrong, experiment or no.

2020-08-10: Theory of Everything Controversies: Livestream

  • 00:00: ... history teaches anything their method of guessing some pretty piece of math and hoping it's useful for something is extremely unpromising we uh ...

2020-07-28: What is a Theory of Everything: Livestream

  • 00:00: ... it's a real honor and pleasure to be joining i'm actually a big fan of maths actually you know you happen to think and get to see that you and ...

2020-06-22: Building Black Holes in a Lab

  • 03:26: ... link a lovely paper by Matt Visser for those who want to delve into the math. ...
  • 04:08: ... the years, physicists have capitalized on these kinds of mathematically analogous situations and found a number of systems with event horizons ...
  • 03:26: ... But by 1982 he realized the two situations had much more in common, mathematically speaking. It turns out that the equations of fluid dynamics can be ...
  • 04:08: ... the years, physicists have capitalized on these kinds of mathematically analogous situations and found a number of systems with event horizons ...
  • 03:26: ... But by 1982 he realized the two situations had much more in common, mathematically speaking. It turns out that the equations of fluid dynamics can be expressed in a ...

2020-06-15: What Happens After the Universe Ends?

  • 09:20: For the black-tie formal answer we’d need to delve into the math of the conformal equivalence of the beginning and end of time.
  • 09:28: But we’ll just do it semi-formally without the math.
  • 00:36: Conformal Cyclic Cosmology is a story of the origin and the end of our universe from great mathematical physicist Sir Roger Penrose.
  • 01:39: A conformal transformation is just some mathematical function that you apply to a geometric space which preserves all of the angles in that space.
  • 09:34: ... Roger Penrose is famous for is his Penrose diagrams - these are ways of mathematically transforming our grid of spacetime to fit infinite distance and time ...
  • 00:36: Conformal Cyclic Cosmology is a story of the origin and the end of our universe from great mathematical physicist Sir Roger Penrose.
  • 01:39: A conformal transformation is just some mathematical function that you apply to a geometric space which preserves all of the angles in that space.
  • 00:36: Conformal Cyclic Cosmology is a story of the origin and the end of our universe from great mathematical physicist Sir Roger Penrose.
  • 09:34: ... Roger Penrose is famous for is his Penrose diagrams - these are ways of mathematically transforming our grid of spacetime to fit infinite distance and time ...

2020-05-27: Does Gravity Require Extra Dimensions?

  • 14:38: On a related note: Polygondwanaland asks how much of this weirdness is actually weirdness and how much is broken math.
  • 14:48: Well, the universe on the other side of the black hole is probably a figment in the math - which I suppose you can call broken math if you like.
  • 14:56: But really, the math is just fine - the problem is assigning physical reality after pushing the math too far.
  • 15:03: After all, the universe may be incredibly well described and modeled by the math, but that doesn't mean the universe is the math.
  • 15:44: ... like an infinite string of universes or a time machine indicate that the math may have led our physical understanding astray, and that's even more ...
  • 14:48: Well, the universe on the other side of the black hole is probably a figment in the math - which I suppose you can call broken math if you like.
  • 00:33: ... no surprise that it was the first force to get a decent mathematical description with Isaac Newton’s Law of Universal Gravitation back in the ...
  • 14:16: Now the multiverse through the black hole arises from tracing the paths of spacetime through the black hole mathematically.
  • 14:24: ... likely to be real than the quantum multiverse - it's almost certainly a mathematical figment, arising from idealized types of black hole that don't really ...
  • 00:33: ... no surprise that it was the first force to get a decent mathematical description with Isaac Newton’s Law of Universal Gravitation back in the ...
  • 14:24: ... likely to be real than the quantum multiverse - it's almost certainly a mathematical figment, arising from idealized types of black hole that don't really ...
  • 00:33: ... no surprise that it was the first force to get a decent mathematical description with Isaac Newton’s Law of Universal Gravitation back in the 17th ...
  • 14:24: ... likely to be real than the quantum multiverse - it's almost certainly a mathematical figment, arising from idealized types of black hole that don't really ...
  • 14:16: Now the multiverse through the black hole arises from tracing the paths of spacetime through the black hole mathematically.

2020-05-18: Mapping the Multiverse

  • 08:43: We’ll come back to how it can be avoided in the math - for now, let’s whip once around back to our own past and hop back through the ring.
  • 15:58: Many of you took issue at my bad math.
  • 16:41: But you were right to be annoyed at my lazy math language.
  • 16:58: ... we had plenty of the other types of nerdery also - I mentioned the math nerds already, but I was especially excited to see plenty of roleplaying ...
  • 08:43: We’ll come back to how it can be avoided in the math - for now, let’s whip once around back to our own past and hop back through the ring.
  • 16:41: But you were right to be annoyed at my lazy math language.
  • 16:58: ... we had plenty of the other types of nerdery also - I mentioned the math nerds already, but I was especially excited to see plenty of roleplaying game ...
  • 01:41: A rotating black hole is described mathematically by the Kerr metric.
  • 08:34: This time travel and naked singularity stuff is good reason to think this part of the mathematical structure of the Kerr black hole is NOT real.
  • 01:41: A rotating black hole is described mathematically by the Kerr metric.

2020-05-11: How Luminiferous Aether Led to Relativity

  • 02:33: ... the Sun. The Dutch physicist Christiaan Huygens developed a detailed mathematical theory around this idea that gravity results from the fluid dynamics of ...

2020-04-28: Space Time Livestream: Ask Matt Anything

  • 00:00: ... a physicist or an astrophysicist and many of you talked about how the math is daunting or or even just asked what level of math you need so to ...

2020-03-24: How Black Holes Spin Space Time

  • 03:27: ... episode. For a preview check out our episode on time machines. Yup, the math says you can visit your past within a Kerr black hole. For the bit about ...
  • 07:50: ... the event horizon where space moves downwards faster than light. In the math, that faster-than-light flow of space is represented in a particularly ...

2020-03-16: How Do Quantum States Manifest In The Classical World?

  • 15:01: Science, Math, History, Literature, or even how to cook, play chess or become a better photographer.

2020-02-24: How Decoherence Splits The Quantum Multiverse

  • 01:52: ... quantum systems are described by this wavefunction thing - it’s the mathematical object that defines the distribution of possible outcomes if you were to ...
  • 13:47: In fact the details have been worked out with mathematical rigor - starting with H. Dieter Zeh’s foundational paper in 1970.
  • 01:52: ... quantum systems are described by this wavefunction thing - it’s the mathematical object that defines the distribution of possible outcomes if you were to ...
  • 13:47: In fact the details have been worked out with mathematical rigor - starting with H. Dieter Zeh’s foundational paper in 1970.
  • 01:52: ... quantum systems are described by this wavefunction thing - it’s the mathematical object that defines the distribution of possible outcomes if you were to try to ...
  • 13:47: In fact the details have been worked out with mathematical rigor - starting with H. Dieter Zeh’s foundational paper in 1970.

2020-02-18: Does Consciousness Influence Quantum Mechanics?

  • 00:41: ... in predicting the behavior of quantum system - rules encapsulated in the mathematics of quantum ...
  • 15:19: So by the mathematical definition, a spatially-farying constant would be a field.
  • 00:41: ... in predicting the behavior of quantum system - rules encapsulated in the mathematics of quantum ...

2020-02-11: Are Axions Dark Matter?

  • 11:03: This all seems like a lot of work for a hypothetical particle predicted from speculative math.
  • 00:27: ... is a classic physics tale: intrepid scientists delve deep into trackless mathematics in search of answers to a mystery. And there, against all expectations, ...
  • 16:00: ... book - and then lots of people corrected my correction. Principia Mathematica, Prinkipia mathematica, princhipia mathematica - many people swearing by ...
  • 00:27: ... is a classic physics tale: intrepid scientists delve deep into trackless mathematics in search of answers to a mystery. And there, against all expectations, ...

2020-01-27: Hacking the Nature of Reality

  • 00:43: ... mathematical description should depend only on observable quantities - in this case, ...
  • 00:54: ... philosophy led to a series of seemingly miraculous mathematical insights, with the final result being the birth of modern quantum theory ...
  • 00:43: ... mathematical description should depend only on observable quantities - in this case, ...
  • 00:54: ... philosophy led to a series of seemingly miraculous mathematical insights, with the final result being the birth of modern quantum theory ...
  • 00:43: ... mathematical description should depend only on observable quantities - in this case, the ...
  • 00:54: ... philosophy led to a series of seemingly miraculous mathematical insights, with the final result being the birth of modern quantum theory and first ...

2020-01-20: Solving the Three Body Problem

  • 01:49: ... That just means it can be written out with a finite number of mathematical operations and ...
  • 07:56: ... masses. The numerical discovery of the figure-8 solution was proved mathematically by Alain Chenciner and Richard Montgomery, and insights gained from that ...
  • 01:49: ... That just means it can be written out with a finite number of mathematical operations and ...
  • 07:56: ... masses. The numerical discovery of the figure-8 solution was proved mathematically by Alain Chenciner and Richard Montgomery, and insights gained from that ...
  • 02:55: ... three body problem became the obsession for many great mathematicians - but over the following three centuries, solutions have been found for ...
  • 06:43: ... status of the three-body problem inspired generations of physicists and mathematicians to continue to seek exact, analytic solutions. And some succeeded - ...
  • 12:00: ... wrong. In 1906, not so long after Poincare stern proclamation, Finnish mathematician Karl Sundman found a solution to the general three-body ...
  • 02:55: ... three body problem became the obsession for many great mathematicians - but over the following three centuries, solutions have been found for ...
  • 06:43: ... status of the three-body problem inspired generations of physicists and mathematicians to continue to seek exact, analytic solutions. And some succeeded - ...
  • 02:55: ... three body problem became the obsession for many great mathematicians - but over the following three centuries, solutions have been found for ...

2020-01-06: How To Detect a Neutrino

  • 09:42: ... Ash Donal Botkin John R Slavik Mathew Edmund Fokschaner Jordan Young Matthew O'Connor ...

2019-12-09: The Doomsday Argument

  • 09:37: ... of this notion of reference class that makes this idea seem far less mathematically precise - far more fishy - than the question of picking balls from ...

2019-11-04: Why We Might Be Alone in the Universe

  • 12:59: Well, crudely, they're a mathematical way to describe the geometry of space - which means they aren't in space, they sort of ARE space.

2019-10-21: Is Time Travel Impossible?

  • 01:41: Actually, the math does sort of allow that.

2019-10-15: Loop Quantum Gravity Explained

  • 03:33: ... physics, we have variables like position, time, momentum, energy - mathematical expressions that represent the observable properties of the object or ...
  • 07:33: Connections are mathematical functions that tell you how something, like a vector, changes as it moves between two points in a space.
  • 13:31: But the mathematics have yielded intriguing clues to the nature of the fabric of the universe – and that nature is very weird.
  • 03:33: ... physics, we have variables like position, time, momentum, energy - mathematical expressions that represent the observable properties of the object or ...
  • 07:33: Connections are mathematical functions that tell you how something, like a vector, changes as it moves between two points in a space.
  • 03:33: ... physics, we have variables like position, time, momentum, energy - mathematical expressions that represent the observable properties of the object or system that ...
  • 07:33: Connections are mathematical functions that tell you how something, like a vector, changes as it moves between two points in a space.
  • 13:31: But the mathematics have yielded intriguing clues to the nature of the fabric of the universe – and that nature is very weird.

2019-10-07: Black Hole Harmonics

  • 13:31: Honestly, that's the only way to get math - to do it.

2019-09-23: Is Pluto a Planet?

  • 02:20: This picture was cleaned up by the observations of Galileo and Brahe and the mathematical models of Kepler and Newton.
  • 02:34: The solar system finally made observational and theoretical sense: there were now 6 planets orbiting the sun in perfect mathematical harmony.
  • 03:27: ... betrayed the existence of Neptune, which was discovered first in the mathematics and then with a telescope in ...
  • 02:20: This picture was cleaned up by the observations of Galileo and Brahe and the mathematical models of Kepler and Newton.
  • 02:34: The solar system finally made observational and theoretical sense: there were now 6 planets orbiting the sun in perfect mathematical harmony.
  • 02:20: This picture was cleaned up by the observations of Galileo and Brahe and the mathematical models of Kepler and Newton.
  • 03:27: ... betrayed the existence of Neptune, which was discovered first in the mathematics and then with a telescope in ...

2019-08-26: How To Become an Astrophysicist + Challenge Question!

  • 08:59: ... not to do a PhD are many Don't do it because you think you're okay at math and can't think of anything else to do besides stay in school Don't do ...
  • 03:35: ... To come to a PhD at their University The first step is to take a ton of mathematics and physics as an undergraduate most estra PhD programs require a good ...

2019-08-06: What Caused the Big Bang?

  • 03:13: We've covered how this works for dark energy in a lot of detail. Check out the playlist if you want to get an insight into the actual math.

2019-07-25: Deciphering The Vast Scale of the Universe

  • 03:39: ... Cepheid variables, brightened and dimmed with a repeating period that is mathematically related to the stars’ absolute ...

2019-07-18: Did Time Start at the Big Bang?

  • 00:25: ... our universe is expanding and if we reverse that expansion far enough - mathematically - purely according to Einstein's equations, it seems inevitable that all ...
  • 08:14: ... of what tells us. It's wrong Any time you encounter a singularity in the mathematics of a physical theory you have good reason for skepticism It's probably ...
  • 09:52: ... eternally expanding universe Looks like the Big Bang of a new universe Mathematically so our heat death is someone else's Big ...
  • 00:25: ... our universe is expanding and if we reverse that expansion far enough - mathematically - purely according to Einstein's equations, it seems inevitable that all ...
  • 09:52: ... eternally expanding universe Looks like the Big Bang of a new universe Mathematically so our heat death is someone else's Big ...
  • 00:25: ... our universe is expanding and if we reverse that expansion far enough - mathematically - purely according to Einstein's equations, it seems inevitable that all ...
  • 08:14: ... of what tells us. It's wrong Any time you encounter a singularity in the mathematics of a physical theory you have good reason for skepticism It's probably ...

2019-07-15: The Quantum Internet

  • 01:21: ... Shannon started it all with his 1948 paper “A Mathematical Theory of Communication”, which quantified the rate of digital ...

2019-05-16: The Cosmic Dark Ages

  • 13:43: ... need to break the laws of physics - rather than just solve really hard math ...

2019-05-09: Why Quantum Computing Requires Quantum Cryptography

  • 02:32: It's a mathematical process that can't be undone with the public key - only with its prime factors, which only you have.

2019-04-24: No Dark Matter = Proof of Dark Matter?

  • 00:03: ... Halliday's brilliant drawing in which the lightsaber blade is the matrix mathematics of the more penrose conditions truly an elegant weapon for a more ...

2019-04-10: The Holographic Universe Explained

  • 06:59: Our 2-D grid behaves like a 3-D volume, and we can treat it like one – mathematically.
  • 12:58: Represent a 2-D hyperbolic space as a compactified map and it has an edge – at least a mathematical one.
  • 13:58: ... question we now wrestle with is this: a series of mathematical clues indicate that our universe may be holographic – or at least have a ...
  • 14:13: Can these just be crazy mathematical coincidences?
  • 14:27: An abstract mathematical surface infinitely far from our location and from our intuition, projecting inwards our familiar holographic spacetime.
  • 12:58: Represent a 2-D hyperbolic space as a compactified map and it has an edge – at least a mathematical one.
  • 13:58: ... question we now wrestle with is this: a series of mathematical clues indicate that our universe may be holographic – or at least have a ...
  • 14:13: Can these just be crazy mathematical coincidences?
  • 14:27: An abstract mathematical surface infinitely far from our location and from our intuition, projecting inwards our familiar holographic spacetime.
  • 13:58: ... question we now wrestle with is this: a series of mathematical clues indicate that our universe may be holographic – or at least have a dual ...
  • 14:13: Can these just be crazy mathematical coincidences?
  • 14:27: An abstract mathematical surface infinitely far from our location and from our intuition, projecting inwards our familiar holographic spacetime.
  • 06:59: Our 2-D grid behaves like a 3-D volume, and we can treat it like one – mathematically.

2019-04-03: The Edge of an Infinite Universe

  • 17:01: ... I think at that level this is all just different interpretations of the math. ...
  • 00:11: We can define a boundary to an infinite universe, at least mathematically.
  • 01:50: In fact, if we twist our human intuition and our mathematics to its limit we can build our picket fence around an infinite universe.
  • 02:00: ... mathematical boundary at infinity turns out to be not just useful for doing ...
  • 04:38: Physicists found mathematical ways to fuse space and time into new coordinates that suppressed the infinities.
  • 04:49: The first efforts were designed to allow physicists to cross the event horizon of black holes – mathematically.
  • 13:03: ... exists only in the compactified coordinates of the interior volume - is mathematically exactly a flat, Minkowski ...
  • 14:04: ... a 3+1-dimensional Minkowski space, that corresponded to an interesting mathematical structure in the enclosed 4+1-D AdS ...
  • 02:00: ... mathematical boundary at infinity turns out to be not just useful for doing ...
  • 04:38: Physicists found mathematical ways to fuse space and time into new coordinates that suppressed the infinities.
  • 14:04: ... a 3+1-dimensional Minkowski space, that corresponded to an interesting mathematical structure in the enclosed 4+1-D AdS ...
  • 02:00: ... mathematical boundary at infinity turns out to be not just useful for doing calculations in ...
  • 14:04: ... a 3+1-dimensional Minkowski space, that corresponded to an interesting mathematical structure in the enclosed 4+1-D AdS ...
  • 04:38: Physicists found mathematical ways to fuse space and time into new coordinates that suppressed the infinities.
  • 00:11: We can define a boundary to an infinite universe, at least mathematically.
  • 04:49: The first efforts were designed to allow physicists to cross the event horizon of black holes – mathematically.
  • 13:03: ... exists only in the compactified coordinates of the interior volume - is mathematically exactly a flat, Minkowski ...
  • 01:50: In fact, if we twist our human intuition and our mathematics to its limit we can build our picket fence around an infinite universe.

2019-03-28: Could the Universe End by Tearing Apart Every Atom?

  • 01:55: ... playlist delving into the mysteries of dark energy we actually used math the Friedmann equations we're not going to go so deep here but we are ...
  • 08:53: So let's see what this made up math has to say about when the big rip would happen.
  • 00:25: ... the overall amount of dark energy hence the accelerating expansion mathematically we describe a constant energy density with the cosmological constant in ...

2019-03-20: Is Dark Energy Getting Stronger?

  • 02:13: Mathematically we represent a constant vacuum energy with Einstein’s cosmological constant – or Lambda.

2019-03-13: Will You Travel to Space?

  • 12:52: ... electronic, country, rock, and more. And this week they have a very mathy episode on the Fibonacci Sequence and Golden Ratio in music and how its ...

2019-03-06: The Impossibility of Perpetual Motion Machines

  • 04:26: Richard Feynman himself demonstrated this mathematically.
  • 01:27: Bhāskara's wheel, named after the Indian mathematician, was embedded with tubes of mercury that would flow from back and forth as the wheel turned.

2019-02-20: Secrets of the Cosmic Microwave Background

  • 02:05: ... Each layer has fluctuations of a certain size defined by the mathematics of spherical harmonics Sort of like sine waves but different wavelengths ...

2019-01-24: The Crisis in Cosmology

  • 16:34: ...is mathematically the same as a positive mass particle moving forward in time That notion makes sense in the math,...

2019-01-16: Our Antimatter, Mirrored, Time-Reversed Universe

  • 08:43: ... quantum information is conserved in this type of time rehearsal. Mathematically, the particles in a rewinding universe actually look like they underwent ...

2018-12-20: Why String Theory is Wrong

  • 00:52: It just couldn't be true, despite the elegance of the math.
  • 02:43: ... the familiar general relativity in our universe, plus an extra bit of math from the extra special ...
  • 03:00: Crazily, that math also looked familiar. It looked like Maxwell's equations for electromagnetism.
  • 09:37: The appearance of dualities tells us that we probably can't take our geometric interpretations of the math as seriously as we'd like to.
  • 00:07: There's this idea that beauty is a powerful guide to truth in the mathematics of physical theory.
  • 07:04: A duality in physics is when two apparently different mathematical theories proved to represent the same physical process.
  • 08:49: It turns out that mathematically, these two are completely equivalent.
  • 07:04: A duality in physics is when two apparently different mathematical theories proved to represent the same physical process.
  • 08:49: It turns out that mathematically, these two are completely equivalent.
  • 00:07: There's this idea that beauty is a powerful guide to truth in the mathematics of physical theory.

2018-11-14: Supersymmetric Particle Found?

  • 14:17: To quote, "I thought one of the fundamental properties of the strings was that the maths only works if they are one dimensional.
  • 14:47: So yeah, the math of string theory only works for 1D objects because these trace 2D world sheets.
  • 14:17: To quote, "I thought one of the fundamental properties of the strings was that the maths only works if they are one dimensional.

2018-11-07: Why String Theory is Right

  • 02:41: But the fact is when you start to work out the math of string theory, gravity appears like magic.
  • 04:15: If you even try to describe very strong gravitational interactions, you get nonsense black holes in the math.
  • 05:39: This stuff appears a little too naturally in the math of string theory to be a coincidence, or so a string theorist might tell you.
  • 07:17: Quantizing the motion of strings also starts out ugly, but there are also some math tricks to make it work.
  • 07:42: Finding symmetries can massively reduce the complexity of the math.
  • 12:49: ... were lead to string theory by the elegance of the math and the fact that it appeared, at least in the beginning, to converge on ...
  • 13:53: ... to get access to a library of different video lectures about science, math, history, literature, or even how to cook, play chess, or become a ...
  • 07:17: Quantizing the motion of strings also starts out ugly, but there are also some math tricks to make it work.
  • 01:36: ... mathematics seem to come together so neatly towards a unified description of all ...
  • 01:47: I want to try to give you a glimpse into this mathematical elegance.
  • 06:46: It was a mathematical mess until Dirac added some nonsense terms to the electron-wave function that caused a lot of the mess to cancel out.
  • 07:10: This is a powerful example of how following mathematical prettiness could bring us closer to the truth.
  • 10:41: ... means we can smooth out that surface mathematically and write a nice, simple quantum wave equation from the equations of ...
  • 13:10: But can such an elegant and rich mathematical structure really have nothing to do with reality?
  • 13:17: There's plenty of historical precedent for mathematical beauty leading to truth, but there's no fundamental principle that says it has to.
  • 13:30: Philosophical points to consider as we continue to follow the mathematical beauty hopefully towards an increasingly true representation of spacetime.
  • 14:44: ... many virtual particles, but the particles themselves are just convenient mathematical building blocks to describe a messy disturbance in the ...
  • 01:47: I want to try to give you a glimpse into this mathematical elegance.
  • 06:46: It was a mathematical mess until Dirac added some nonsense terms to the electron-wave function that caused a lot of the mess to cancel out.
  • 07:10: This is a powerful example of how following mathematical prettiness could bring us closer to the truth.
  • 13:10: But can such an elegant and rich mathematical structure really have nothing to do with reality?
  • 13:17: There's plenty of historical precedent for mathematical beauty leading to truth, but there's no fundamental principle that says it has to.
  • 13:30: Philosophical points to consider as we continue to follow the mathematical beauty hopefully towards an increasingly true representation of spacetime.
  • 14:44: ... many virtual particles, but the particles themselves are just convenient mathematical building blocks to describe a messy disturbance in the ...
  • 13:17: There's plenty of historical precedent for mathematical beauty leading to truth, but there's no fundamental principle that says it has to.
  • 13:30: Philosophical points to consider as we continue to follow the mathematical beauty hopefully towards an increasingly true representation of spacetime.
  • 13:17: There's plenty of historical precedent for mathematical beauty leading to truth, but there's no fundamental principle that says it has to.
  • 14:44: ... many virtual particles, but the particles themselves are just convenient mathematical building blocks to describe a messy disturbance in the ...
  • 01:47: I want to try to give you a glimpse into this mathematical elegance.
  • 06:46: It was a mathematical mess until Dirac added some nonsense terms to the electron-wave function that caused a lot of the mess to cancel out.
  • 07:10: This is a powerful example of how following mathematical prettiness could bring us closer to the truth.
  • 13:10: But can such an elegant and rich mathematical structure really have nothing to do with reality?
  • 10:41: ... means we can smooth out that surface mathematically and write a nice, simple quantum wave equation from the equations of ...
  • 01:36: ... mathematics seem to come together so neatly towards a unified description of all ...

2018-10-31: Are Virtual Particles A New Layer of Reality?

  • 01:05: The quantization part of his math trick was meant to disappear in the final form of the equation, but it remained.
  • 01:15: That math hack turned out to represent the very real quantum nature of the photon.
  • 10:12: In the math of QFT, the perfect vacuum is a steady state.
  • 13:17: There is no good reason to believe that virtual particles exist outside the math we use to approximate the behavior of quantum fields.
  • 01:15: That math hack turned out to represent the very real quantum nature of the photon.
  • 01:05: The quantization part of his math trick was meant to disappear in the final form of the equation, but it remained.
  • 00:53: Sometimes our mathematical hacks point to strange new aspects of reality.
  • 01:26: A more recent mathematical hack is the virtual particle.
  • 03:00: It's our mathematical hack.
  • 04:25: Instead, virtual particles are the mathematical building blocks we use to approximate the complex states of interacting fields.
  • 05:45: Virtual particles are our mathematical representation of the quantum mechanical behavior of fields, and that behavior is weird.
  • 11:28: In his actual mathematical derivation, he instead talks about vibrational modes of the quantum vacuum being cut off by the event horizon.
  • 12:00: So to recap, virtual particles are best thought of as a mathematical device to represent the behavior of quantum fields.
  • 12:18: ... Planck discovery of the quantum nature of photons, it turned out that a mathematical artifact represented new real physics-- the quantum nature of the photon ...
  • 13:13: Ergo, virtual particles are probably just a mathematical artifact.
  • 00:53: Sometimes our mathematical hacks point to strange new aspects of reality.
  • 01:26: A more recent mathematical hack is the virtual particle.
  • 03:00: It's our mathematical hack.
  • 04:25: Instead, virtual particles are the mathematical building blocks we use to approximate the complex states of interacting fields.
  • 05:45: Virtual particles are our mathematical representation of the quantum mechanical behavior of fields, and that behavior is weird.
  • 11:28: In his actual mathematical derivation, he instead talks about vibrational modes of the quantum vacuum being cut off by the event horizon.
  • 12:00: So to recap, virtual particles are best thought of as a mathematical device to represent the behavior of quantum fields.
  • 12:18: ... Planck discovery of the quantum nature of photons, it turned out that a mathematical artifact represented new real physics-- the quantum nature of the photon ...
  • 13:13: Ergo, virtual particles are probably just a mathematical artifact.
  • 12:18: ... Planck discovery of the quantum nature of photons, it turned out that a mathematical artifact represented new real physics-- the quantum nature of the photon in that ...
  • 13:13: Ergo, virtual particles are probably just a mathematical artifact.
  • 12:18: ... Planck discovery of the quantum nature of photons, it turned out that a mathematical artifact represented new real physics-- the quantum nature of the photon in that ...
  • 04:25: Instead, virtual particles are the mathematical building blocks we use to approximate the complex states of interacting fields.
  • 11:28: In his actual mathematical derivation, he instead talks about vibrational modes of the quantum vacuum being cut off by the event horizon.
  • 12:00: So to recap, virtual particles are best thought of as a mathematical device to represent the behavior of quantum fields.
  • 01:26: A more recent mathematical hack is the virtual particle.
  • 03:00: It's our mathematical hack.
  • 00:53: Sometimes our mathematical hacks point to strange new aspects of reality.
  • 05:45: Virtual particles are our mathematical representation of the quantum mechanical behavior of fields, and that behavior is weird.

2018-10-18: What are the Strings in String Theory?

  • 03:45: What if the math of this theory could be used in a theory of quantum gravity?
  • 00:51: Its equations predict many things with stunning accuracy, but they first required us to tune many mathematical knobs and dials.
  • 09:37: Its interactions are smeared around that string, handily avoiding the explosion of mathematical infinities you get below the Planck length.
  • 00:51: Its equations predict many things with stunning accuracy, but they first required us to tune many mathematical knobs and dials.
  • 09:37: Its interactions are smeared around that string, handily avoiding the explosion of mathematical infinities you get below the Planck length.
  • 00:51: Its equations predict many things with stunning accuracy, but they first required us to tune many mathematical knobs and dials.

2018-09-20: Quantum Gravity and the Hardest Problem in Physics

  • 02:41: That math started with the Schrodinger equation, which tracks these probability waves through space and time.
  • 08:19: But in the resulting math, the new quantum fields still lie on top of a smooth, continuous grid of space and time.
  • 02:41: That math started with the Schrodinger equation, which tracks these probability waves through space and time.
  • 02:32: Our experience of the universe appears to be plucked from this landscape of possibilities in strange, but mathematically predictable, ways.

2018-08-23: How Will the Universe End?

  • 16:20: ... says that sometimes it feels like we're trying to fit maths randomly to the observations when we come up with stuff like virtual ...

2018-08-15: Quantum Theory's Most Incredible Prediction

  • 12:53: ... to get access to a library of different video lectures about science, math, history, literature, or even how to cook, play chess or become a ...
  • 00:17: [MUSIC PLAYING] Quantum field theory is notoriously complicated, built from mind-bendingly abstract mathematics.
  • 07:36: In the case of electromagnetism, those interactions are mediated by virtual photons, which are just a mathematical way to describe quantum buzz.
  • 00:17: [MUSIC PLAYING] Quantum field theory is notoriously complicated, built from mind-bendingly abstract mathematics.

2018-07-25: Reversing Entropy with Maxwell's Demon

  • 13:08: Zombie Blood would like us to walk through the math used in calculating the number of possible microstates on the Go board.

2018-07-18: The Misunderstood Nature of Entropy

  • 11:26: Honestly, that's the only way to get math, to do it.
  • 11:43: Brilliant, Math and Science Done Right, is proud to support "Space Time." To learn more about Brilliant, go to brilliant.org/spacetime.

2018-07-11: Quantum Invariance & The Origin of The Standard Model

  • 03:07: Pay attention to this bit of math.
  • 00:28: As far as we can tell, mathematics is the language in which the universe is written.
  • 01:14: ... simple terms, a gauge theory is one that has mathematical parameters or degrees of freedom that can be changed without affecting ...
  • 02:35: ... describes the evolution of the wave function, which is the mathematical object that contains all the information about a particular physical ...
  • 03:48: It's literally complex in the mathematical sense.
  • 06:57: ... turns out that we can add a mathematical term to the momentum operator that's specially designed to undo any mess ...
  • 07:17: ... right now, but the important and absolutely bizarre thing about this mathematical entity is that it looks like something very ...
  • 10:29: ... fundamental forces, perhaps it's the fact that by pure exploration of mathematics, delving many layers of abstraction deeper than our capacity for ...
  • 10:49: And following those mathematical labyrinths reveals physical theory with stunning predictive power, like the standard model of particle physics.
  • 10:58: Mathematics truly seems to be the language in which the universe is written.
  • 01:14: ... simple terms, a gauge theory is one that has mathematical parameters or degrees of freedom that can be changed without affecting ...
  • 02:35: ... describes the evolution of the wave function, which is the mathematical object that contains all the information about a particular physical ...
  • 03:48: It's literally complex in the mathematical sense.
  • 06:57: ... turns out that we can add a mathematical term to the momentum operator that's specially designed to undo any mess ...
  • 07:17: ... right now, but the important and absolutely bizarre thing about this mathematical entity is that it looks like something very ...
  • 10:49: And following those mathematical labyrinths reveals physical theory with stunning predictive power, like the standard model of particle physics.
  • 07:17: ... right now, but the important and absolutely bizarre thing about this mathematical entity is that it looks like something very ...
  • 10:49: And following those mathematical labyrinths reveals physical theory with stunning predictive power, like the standard model of particle physics.
  • 02:35: ... describes the evolution of the wave function, which is the mathematical object that contains all the information about a particular physical ...
  • 01:14: ... simple terms, a gauge theory is one that has mathematical parameters or degrees of freedom that can be changed without affecting the ...
  • 03:48: It's literally complex in the mathematical sense.
  • 06:57: ... turns out that we can add a mathematical term to the momentum operator that's specially designed to undo any mess we ...
  • 00:28: As far as we can tell, mathematics is the language in which the universe is written.
  • 10:29: ... fundamental forces, perhaps it's the fact that by pure exploration of mathematics, delving many layers of abstraction deeper than our capacity for ...
  • 10:58: Mathematics truly seems to be the language in which the universe is written.
  • 10:29: ... fundamental forces, perhaps it's the fact that by pure exploration of mathematics, delving many layers of abstraction deeper than our capacity for intuition, we ...

2018-06-27: How Asteroid Mining Will Save Earth

  • 11:00: And to help you understand the universe, I recommend "Our Mathematical Universe" by Max Tegmark.
  • 11:05: In it, Professor Tegmark explores an incredible idea that perhaps our reality is mathematical at its most fundamental level.
  • 11:00: And to help you understand the universe, I recommend "Our Mathematical Universe" by Max Tegmark.
  • 11:05: In it, Professor Tegmark explores an incredible idea that perhaps our reality is mathematical at its most fundamental level.
  • 11:00: And to help you understand the universe, I recommend "Our Mathematical Universe" by Max Tegmark.

2018-06-20: The Black Hole Information Paradox

  • 12:36: Brilliant, math and science done right, is proud to support "Space Time".
  • 11:54: They were glimpsed as dark stars in the mathematics of Isaac Newton's law of universal gravitation.
  • 12:01: So, to continue your own mathematical journey into black holes, Newton's gravity is the place to start.
  • 13:29: In the mathematics, it looks as though anything falling into a charged black hole is ejected into a separate universe.
  • 14:11: Virtual particles in general are just a way to mathematically account for the infinite ways a quantum field can communicate its influence.
  • 12:01: So, to continue your own mathematical journey into black holes, Newton's gravity is the place to start.
  • 14:11: Virtual particles in general are just a way to mathematically account for the infinite ways a quantum field can communicate its influence.
  • 11:54: They were glimpsed as dark stars in the mathematics of Isaac Newton's law of universal gravitation.
  • 13:29: In the mathematics, it looks as though anything falling into a charged black hole is ejected into a separate universe.

2018-06-13: What Survives Inside A Black Hole?

  • 00:55: Don't get me wrong, the math is complicated, but the objects themselves are simple.
  • 11:21: ... to get access to a library of different video lectures about science, math, history, literature, or even how to cook, play chess, or become a ...

2018-05-23: Why Quantum Information is Never Destroyed

  • 07:05: ... is not straightforward to explain without getting into some hairy math, but the upshot is that quantum states must remain independent of each ...
  • 00:32: They are mathematical rules that dictate how systems evolve in time.
  • 12:49: ... most of the solution but had put it by the wayside for more important mathematics. ...
  • 13:07: In true mathematical fashion, her work was far more general than anything we deal with in physics.
  • 00:32: They are mathematical rules that dictate how systems evolve in time.
  • 13:07: In true mathematical fashion, her work was far more general than anything we deal with in physics.
  • 00:32: They are mathematical rules that dictate how systems evolve in time.
  • 13:17: It's hard to understate just how amazing of a mathematician she was.
  • 12:49: ... most of the solution but had put it by the wayside for more important mathematics. ...

2018-05-16: Noether's Theorem and The Symmetries of Reality

  • 01:34: But the failure of energy conservation was still clear from the math of general relativity.
  • 05:56: Despite its profound implications, the math behind Noether's theorem is surprisingly straightforward.
  • 08:46: Yet, she gained little public recognition in her time and is still only known to the more eager students of math and physics.
  • 09:45: Brilliant is a math and science learning site that encourages members to learn through problem solving.
  • 09:01: ... Weyl, also a giant in the mathematical foundation of quantum mechanics, said in her memorial address, I was ...
  • 09:21: Her contributions to mathematics, particularly abstract algebra, redefined entire fields.
  • 09:01: ... Weyl, also a giant in the mathematical foundation of quantum mechanics, said in her memorial address, I was ...
  • 01:40: Two of the greats of the era, David Hilbert and Felix Klein, sought the help of a young mathematician Emmy Noether to understand this seeming paradox.
  • 08:42: Emmy Noether was one of the greatest mathematicians of the golden age of modern physics.
  • 09:01: ... such a preferred position beside her whom I knew to be my superior as a mathematician in many ...
  • 01:40: Two of the greats of the era, David Hilbert and Felix Klein, sought the help of a young mathematician Emmy Noether to understand this seeming paradox.
  • 08:42: Emmy Noether was one of the greatest mathematicians of the golden age of modern physics.
  • 09:21: Her contributions to mathematics, particularly abstract algebra, redefined entire fields.

2018-04-18: Using Stars to See Gravitational Waves

  • 09:21: All of brilliant.org's many courses on math and physics use the best pedagogical practices.

2018-04-11: The Physics of Life (ft. It's Okay to be Smart & PBS Eons!)

  • 08:48: ... demonstrated mathematically that self-replicating molecules and simple single-cell life are ...

2018-04-04: The Unruh Effect

  • 07:52: It's been worked out with math and everything.

2018-03-15: Hawking Radiation

  • 08:13: So Hawking's math describes splitting or mixing of these pure positive and negative frequency modes.
  • 11:00: It's hard to make Hawking radiation go away in the math.
  • 08:13: So Hawking's math describes splitting or mixing of these pure positive and negative frequency modes.
  • 04:54: The narrative of Hawking's mathematics goes something like this.

2018-02-28: The Trebuchet Challenge

  • 06:04: Our first question requires no math.

2018-02-14: What is Energy?

  • 11:37: ... and get access to a library of different video lectures about science, math, history, literature, or even how to cook, play chess, or become a ...
  • 01:00: Instead, it's a mathematical relationship between other more fundamental quantities.
  • 01:05: It was 17th century polymath Gottfried Leibniz who first figured out the mathematical form of what we call kinetic energy, the energy of motion.
  • 01:00: Instead, it's a mathematical relationship between other more fundamental quantities.
  • 01:05: It was 17th century polymath Gottfried Leibniz who first figured out the mathematical form of what we call kinetic energy, the energy of motion.
  • 01:00: Instead, it's a mathematical relationship between other more fundamental quantities.
  • 10:16: ... relationship between conservation laws and symmetries was discovered by mathematician Emmy Noether and Noether's theorem is something we will come back ...

2018-01-31: Kronos: Devourer Of Worlds

  • 05:54: The researchers tested the hypothesis by throwing a bunch of Earth-like planets into a sun-like star-- mathematically, I mean.

2018-01-24: The End of the Habitable Zone

  • 10:09: To really gain intuition about our often very unintuitive universe, you need to start solving problems in physics, math, and astronomy.
  • 10:22: They've built problem based courses a huge range of subjects, including a lot of math but also physics, astronomy, and computer science.
  • 13:03: ... you should check out our sister channel PBS "Infinite Series." It's a math channel when we're covering topics from topology to cryptography to ...

2018-01-17: Horizon Radiation

  • 07:43: Well, because they actually make the mathematics much easier.

2018-01-10: What Do Stars Sound Like?

  • 09:32: To really gain intuition about our often very unintuitive universe, you need to start solving problems in physics, math, and astronomy.
  • 09:46: They built problem-based courses on a huge range of subjects, including a lot of math, but also physics, astronomy, and computer science.
  • 00:38: ... mathematical models emerged in the early 1900s that described the balance between the ...

2017-12-06: Understanding the Uncertainty Principle with Quantum Fourier Series

  • 11:37: ... and get access to a library of different video lectures about science, math, history, literature, or even how to cook, play chess, or become a ...
  • 03:17: This is Fourier's theorem, after French mathematician Jean-Baptiste Joseph Fourier.

2017-10-19: The Nature of Nothing

  • 02:57: In fact, the math of quantum field theory is all about going up and down this particle ladder, using so-called creation and annihilation operators.
  • 11:42: ... and get access to a library of different video lectures about science, math, history, literature, or even how to cook, play chess, or become a ...
  • 14:55: Well, it's a quirk of the math.
  • 11:42: ... and get access to a library of different video lectures about science, math, history, literature, or even how to cook, play chess, or become a ...
  • 06:23: ... can be argued that virtual particles are just a mathematical tool to describe the behavior of a dynamic vacuum and that no such ...

2017-10-11: Absolute Cold

  • 02:27: It's mathematical form was our first hint at the quantum nature of the subatomic world.

2017-10-04: When Quasars Collide STJC

  • 12:39: Take whatever math and physics they offer.

2017-09-28: Are the Fundamental Constants Changing?

  • 11:28: ... and get access to a library of different video lectures about science, math, history, literature, or even how to cook, play chess, or become a ...

2017-09-13: Neutron Stars Collide in New LIGO Signal?

  • 14:53: I said that the Big Bang is mathematically similar to a white hole, except that it doesn't possess a singularity.

2017-08-30: White Holes

  • 08:41: The math describing the white hole is a perfectly good use of the Schwarzschild metric.
  • 00:05: Lurking in the depths of the mathematics of Einstein's general relativity is an object even stranger than the mysterious black hole.
  • 00:37: ... theory of relativity, physicists wondered how seriously to take this mathematical description of an inescapable region of ...
  • 00:50: ... own Milky Way galaxy harbor these gravitational monstrosities, but the mathematics that predicts the existence of the black hole also describes entities ...
  • 01:21: A white hole is the opposite of a black hole in a very literal mathematical sense.
  • 02:12: ... before everyone gets too excited, white holes are probably a figment of mathematical imagination, but they're a fascinating one, and the idea may help us ...
  • 02:26: White holes first emerged in the very earliest mathematical description of black holes.
  • 10:18: ... improbable entropy dip, and as it happens, the Big Bang looks-- mathematically, at least-- much like a white ...
  • 11:57: The mathematics of the Schwarzschild metric describes an entirely independent region of space time parallel to our own.
  • 00:37: ... theory of relativity, physicists wondered how seriously to take this mathematical description of an inescapable region of ...
  • 01:21: A white hole is the opposite of a black hole in a very literal mathematical sense.
  • 02:12: ... before everyone gets too excited, white holes are probably a figment of mathematical imagination, but they're a fascinating one, and the idea may help us ...
  • 02:26: White holes first emerged in the very earliest mathematical description of black holes.
  • 00:37: ... theory of relativity, physicists wondered how seriously to take this mathematical description of an inescapable region of ...
  • 02:26: White holes first emerged in the very earliest mathematical description of black holes.
  • 02:12: ... before everyone gets too excited, white holes are probably a figment of mathematical imagination, but they're a fascinating one, and the idea may help us understand the ...
  • 01:21: A white hole is the opposite of a black hole in a very literal mathematical sense.
  • 10:18: ... improbable entropy dip, and as it happens, the Big Bang looks-- mathematically, at least-- much like a white ...
  • 00:05: Lurking in the depths of the mathematics of Einstein's general relativity is an object even stranger than the mysterious black hole.
  • 00:50: ... own Milky Way galaxy harbor these gravitational monstrosities, but the mathematics that predicts the existence of the black hole also describes entities ...
  • 11:57: The mathematics of the Schwarzschild metric describes an entirely independent region of space time parallel to our own.

2017-08-10: The One-Electron Universe

  • 01:29: However, Richard Feynman did take at least one aspect very seriously-- the mathematical equivalence of anti-matter as time-reversed matter.
  • 04:36: But reversing a particle's motion is mathematically the same as watching it in reverse time.
  • 01:29: However, Richard Feynman did take at least one aspect very seriously-- the mathematical equivalence of anti-matter as time-reversed matter.
  • 04:36: But reversing a particle's motion is mathematically the same as watching it in reverse time.

2017-07-26: The Secrets of Feynman Diagrams

  • 00:42: ... to a measured final state does, in a sense, happen-- at least in the math. ...
  • 08:35: The math describing the transfer covers both cases.
  • 09:43: These may seem like wildly different processes, but in the math represented by Feynman diagrams, they're exactly the same.
  • 08:35: The math describing the transfer covers both cases.
  • 09:43: These may seem like wildly different processes, but in the math represented by Feynman diagrams, they're exactly the same.
  • 09:12: Mathematically, a time-reversed electron looks exactly like a positron-- like this.

2017-07-19: The Real Star Wars

  • 12:54: ... and get access to a library of different video lectures about science, math, history, literature, or how to cook, play chess, or become a ...

2017-07-12: Solving the Impossible in Quantum Field Theory

  • 03:46: Each part of the Feynman diagrams represents a chunk of the math.
  • 03:08: ... Richard Feynman developed these pictorial tools to organize the painful mathematics of quantum field theory, but they also serve to give a general idea of ...
  • 09:33: But just as with perturbation theory, physicists found a cunning trick to get around this mathematical inconvenience.
  • 03:08: ... Richard Feynman developed these pictorial tools to organize the painful mathematics of quantum field theory, but they also serve to give a general idea of ...

2017-07-07: Feynman's Infinite Quantum Paths

  • 00:13: ... or not this is true, a mathematical description of this crazy idea led to the most powerful expression of ...
  • 07:51: ... out how to add particles with spin, the path integral approach is both mathematically equivalent to and more powerful than earlier derivations of quantum ...
  • 00:13: ... or not this is true, a mathematical description of this crazy idea led to the most powerful expression of ...
  • 07:51: ... out how to add particles with spin, the path integral approach is both mathematically equivalent to and more powerful than earlier derivations of quantum ...

2017-06-28: The First Quantum Field Theory

  • 00:41: Simply by following the math of quantum mechanics, incredible discoveries have been made.
  • 08:00: ... automatically avoids double-counting because the math doesn't even try to keep track of the movement of individual photons-- ...
  • 12:30: ... and get access to a library of different video lectures about science, math, history, literature, or even how to cook, play chess, or become a ...
  • 08:00: ... automatically avoids double-counting because the math doesn't even try to keep track of the movement of individual photons-- only the ...
  • 12:30: ... and get access to a library of different video lectures about science, math, history, literature, or even how to cook, play chess, or become a ...
  • 00:06: ... Feynman called it "the jewel of physics." Of all of our mathematical descriptions of the universe, this one has produced the most stunningly ...
  • 00:46: Its wild success tells us that the mathematical description provided by quantum mechanics reflects deep truths about reality.
  • 07:53: His mathematics, then, kept track of the number of particles, or quantum oscillations, in each of these states.
  • 00:06: ... Feynman called it "the jewel of physics." Of all of our mathematical descriptions of the universe, this one has produced the most stunningly ...
  • 00:46: Its wild success tells us that the mathematical description provided by quantum mechanics reflects deep truths about reality.
  • 00:06: ... Feynman called it "the jewel of physics." Of all of our mathematical descriptions of the universe, this one has produced the most stunningly precise ...
  • 07:53: His mathematics, then, kept track of the number of particles, or quantum oscillations, in each of these states.

2017-06-21: Anti-Matter and Quantum Relativity

  • 01:01: Bohr, Heisenberg, Born, Pauli, and others pieced together a mathematical description for the weird nature of subatomic particles.
  • 05:10: ... stumbled upon a single simple idea that caused the resulting horrendous mathematics to collapse into an incredibly simple, beautiful ...
  • 01:01: Bohr, Heisenberg, Born, Pauli, and others pieced together a mathematical description for the weird nature of subatomic particles.
  • 05:10: ... stumbled upon a single simple idea that caused the resulting horrendous mathematics to collapse into an incredibly simple, beautiful ...

2017-04-26: Are You a Boltzmann Brain?

  • 10:35: ... and get access to a library of different video lectures about science, math, history, literature, or even how to cook, play chess, or become a ...

2017-04-05: Telescopes on the Moon

  • 11:33: ... an antigravitational effect through negative pressure, in a way that's mathematically similar to dark ...

2017-03-29: How Time Becomes Space Inside a Black Hole

  • 01:10: I'm going to show you the math one more time.
  • 00:06: ... the strange switching in the roles of space and time that occurs in the mathematics when we drop below the event horizon of a black ...
  • 00:30: Is this space-time dyslexia purely a mathematical quirk?
  • 04:36: In the mathematics the coordinate r, which once represented distance, now grants the negative sign needed to maintain your causal flow.
  • 05:07: Let's fall into the black hole one more time, now graphically instead of mathematically.
  • 13:46: It's now been proved mathematically that time crystals can exist in equilibrium.
  • 00:30: Is this space-time dyslexia purely a mathematical quirk?
  • 05:07: Let's fall into the black hole one more time, now graphically instead of mathematically.
  • 13:46: It's now been proved mathematically that time crystals can exist in equilibrium.
  • 00:06: ... the strange switching in the roles of space and time that occurs in the mathematics when we drop below the event horizon of a black ...
  • 04:36: In the mathematics the coordinate r, which once represented distance, now grants the negative sign needed to maintain your causal flow.

2017-03-15: Time Crystals!

  • 09:51: ... and get access to a library of different video lectures about science, math, history, literature, or even how to cook, play chess, or become a ...

2017-02-15: Telescopes of Tomorrow

  • 10:04: ... and get access to a library of different video lectures about science, math, history, literature, or even how to cook, play chess, or become a ...

2017-02-02: The Geometry of Causality

  • 06:56: We just performed a Lorentz transformation, but using geometry rather than math.
  • 11:56: ... core of a black hole an artifact of the limitations of three dimensional mathematics?" Well, maybe, sort ...
  • 12:07: ... way out of the mathematical singularity at the center of black holes is with string theory, which ...
  • 12:47: Mathematician Georg Cantor invented set theory, the mathematics we use to study different types of infinity.
  • 12:07: ... way out of the mathematical singularity at the center of black holes is with string theory, which ...
  • 12:36: Jose Hernandez says that, for a mathematician, infinity is just a number.
  • 12:47: Mathematician Georg Cantor invented set theory, the mathematics we use to study different types of infinity.
  • 12:36: Jose Hernandez says that, for a mathematician, infinity is just a number.
  • 11:56: ... core of a black hole an artifact of the limitations of three dimensional mathematics?" Well, maybe, sort ...
  • 12:47: Mathematician Georg Cantor invented set theory, the mathematics we use to study different types of infinity.

2017-01-25: Why Quasars are so Awesome

  • 10:18: ... and get access to a library of different video lectures about science, math, history, literature, or even how to cook, play chess, or become a ...

2017-01-19: The Phantom Singularity

  • 00:36: Let's look at the math.
  • 01:43: ... the hypothetically infinitely dense core of a black hole, but in math the meaning of this word is much more ...
  • 02:09: Kelsey, the math for black holes goes to infinity for different properties and in different locations.
  • 03:55: It's a math show, by the way, so it's sometimes about real stuff.
  • 05:04: OK, that sure is some math.
  • 00:09: In mathematics, singularities come in wild and wonderful varieties.
  • 01:55: Instead of me trying to explain mathematical singularities, how about we get a real mathematician to do this properly.
  • 02:16: What does this mathematical weirdness tell us?
  • 03:29: ... models of the movement of water to human population growth, mathematics predicts a physical singularity, and we've been forced to reject the ...
  • 07:45: It's as much a mathematical singularity as the one in the center of the black hole.
  • 10:55: Anyway the upshot is that it's really a breeze to drop through the event horizon, both physically and mathematically.
  • 12:13: Cheers to Kelsey Houston Edwards for helping us understand mathematical singularities.
  • 01:55: Instead of me trying to explain mathematical singularities, how about we get a real mathematician to do this properly.
  • 02:16: What does this mathematical weirdness tell us?
  • 07:45: It's as much a mathematical singularity as the one in the center of the black hole.
  • 12:13: Cheers to Kelsey Houston Edwards for helping us understand mathematical singularities.
  • 01:55: Instead of me trying to explain mathematical singularities, how about we get a real mathematician to do this properly.
  • 12:13: Cheers to Kelsey Houston Edwards for helping us understand mathematical singularities.
  • 07:45: It's as much a mathematical singularity as the one in the center of the black hole.
  • 02:16: What does this mathematical weirdness tell us?
  • 10:55: Anyway the upshot is that it's really a breeze to drop through the event horizon, both physically and mathematically.
  • 01:55: Instead of me trying to explain mathematical singularities, how about we get a real mathematician to do this properly.
  • 02:19: Well, mathematicians use the word singularity pretty broadly.
  • 03:59: Mathematicians are lucky.
  • 02:19: Well, mathematicians use the word singularity pretty broadly.
  • 03:59: Mathematicians are lucky.
  • 00:09: In mathematics, singularities come in wild and wonderful varieties.
  • 03:29: ... models of the movement of water to human population growth, mathematics predicts a physical singularity, and we've been forced to reject the ...
  • 00:09: In mathematics, singularities come in wild and wonderful varieties.

2016-12-08: What Happens at the Event Horizon?

  • 11:39: ... and get access to a library of different video lectures about science, math, history, literature, or even how to cook, play chess, or become a ...
  • 18:25: ... was unable to pull the math together in time for the fated Solvay Conference, and so derived the ...
  • 11:39: ... and get access to a library of different video lectures about science, math, history, literature, or even how to cook, play chess, or become a ...
  • 10:47: ... complete mathematical solution for a Schwarzschild black hole has two additional regions, one ...
  • 11:07: These are strange mathematical entities and probably aren't real, but we'll certainly come back to them.
  • 10:47: ... complete mathematical solution for a Schwarzschild black hole has two additional regions, one ...
  • 11:07: These are strange mathematical entities and probably aren't real, but we'll certainly come back to them.
  • 10:47: ... complete mathematical solution for a Schwarzschild black hole has two additional regions, one ...

2016-11-30: Pilot Wave Theory and Quantum Realism

  • 06:58: Well, for one thing, it needs a teensy bit of extra math that mainstream interpretations don't.
  • 07:16: That "extra math" is considered un-parsimonious to some, a needless added complexity.
  • 00:47: There are some pretty out there explanations for the processes at work behind the incredibly successful mathematics of quantum mechanics.
  • 08:05: ... soon after de Broglie first proposed pilot-waves, the revered mathematician John Von Neumann published a proof showing that hidden variable ...
  • 08:43: ... was figured out pretty soon after Von Neumann's paper by German mathematician Grete Hermann, although her refutation wasn't noticed until it was ...
  • 08:05: ... soon after de Broglie first proposed pilot-waves, the revered mathematician John Von Neumann published a proof showing that hidden variable explanations ...
  • 00:47: There are some pretty out there explanations for the processes at work behind the incredibly successful mathematics of quantum mechanics.

2016-11-16: Strange Stars

  • 00:32: ... are monsters lurking in that math, predictions of phenomena so extreme and bizarre that, as with any ...
  • 09:28: Nothing is confirmed yet, but there are tantalizing hints that these exotic stars, these monsters in the math, may be very real.
  • 00:32: ... are monsters lurking in that math, predictions of phenomena so extreme and bizarre that, as with any monster, it was ...
  • 00:14: [MUSIC PLAYING] The mathematics of modern physics that emerged through the 20th century explained so much about our universe.
  • 00:28: But the same mathematics also hid some surprises.
  • 00:14: [MUSIC PLAYING] The mathematics of modern physics that emerged through the 20th century explained so much about our universe.
  • 00:28: But the same mathematics also hid some surprises.

2016-11-09: Did Dark Energy Just Disappear?

  • 12:29: ... and get access to a library of different video lectures about science, math, history, literature, or even how to cook, play chess, or become a ...
  • 10:33: When you mathematically combine the certainty contours of two completely independent measurements they give you a much tighter range of possibilities.

2016-10-26: The Many Worlds of the Quantum Multiverse

  • 08:18: ... of the mathematics of quantum mechanics because there's nothing in that math that requires the collapse of the wave ...
  • 00:53: Mathematically, this is encapsulated in the wave function of a quantum particle or system of particles.
  • 05:52: This sounds outrageous, but it's a very serious interpretation of the mathematics of quantum mechanics.
  • 08:18: ... worlds may, in fact, be the more pure interpretation of the mathematics of quantum mechanics because there's nothing in that math that requires ...
  • 09:47: ... so although it is supported by the incredibly successful mathematics of quantum mechanics, it has not yet added a prediction that might ...
  • 00:53: Mathematically, this is encapsulated in the wave function of a quantum particle or system of particles.
  • 05:52: This sounds outrageous, but it's a very serious interpretation of the mathematics of quantum mechanics.
  • 08:18: ... worlds may, in fact, be the more pure interpretation of the mathematics of quantum mechanics because there's nothing in that math that requires ...
  • 09:47: ... so although it is supported by the incredibly successful mathematics of quantum mechanics, it has not yet added a prediction that might ...

2016-10-12: Black Holes from the Dawn of Time

  • 10:15: ... and get access to a library of different video lectures about science, math, history, literature, or even how to cook, play chess, or become a ...

2016-09-21: Quantum Entanglement and the Great Bohr-Einstein Debate

  • 00:17: [MUSIC PLAYING] Babies may suck at math.

2016-09-14: Self-Replicating Robots and Galactic Domination

  • 10:03: ... and get access to a library of different video lectures about science, math, history, literature, or even how to cook, play chess, or become a ...
  • 03:05: ... even in the late '40s, John Von Neumann, Hungarian mathematician, physicist, inventor, and general co-founder of the modern technological ...

2016-08-24: Should We Build a Dyson Sphere?

  • 10:20: ... and get access to a library of different video lectures about science, math, history, literature, or even how to cook, play chess, or become a ...

2016-07-27: The Quantum Experiment that Broke Reality

  • 10:33: ... and get access to a library of different video lectures about science, math, history, literature, or even how to cook, play chess, or become a ...
  • 06:00: ... call the mathematical description of this wave-like distribution of properties a "wave ...

2016-06-22: Planck's Constant and The Origin of Quantum Mechanics

  • 07:09: ... approach to deriving the blackbody spectrum, he needed some sort of math trick to count the supposedly infinite energy ...
  • 08:26: It was supposed to be a math trick.
  • 11:09: ... and get access to a library of different video lectures about science, math, history, literature, or even how to cook, play chess, become a ...
  • 07:09: ... approach to deriving the blackbody spectrum, he needed some sort of math trick to count the supposedly infinite energy ...
  • 08:26: It was supposed to be a math trick.
  • 04:54: The key to unlocking the mystery lay in finding a mathematical description for the blackbody spectrum.
  • 06:37: ... they tried to mathematically distribute heat energy to equipartitionates across possible energy ...
  • 06:51: ... Mathematically, Rayleigh and Jeans were chasing Zeno's tortoise, infinitely dividing the ...
  • 07:09: ... searching for a new mathematical approach to deriving the blackbody spectrum, he needed some sort of math ...
  • 08:59: ... given a mathematical form for the blackbody spectrum, it was possible to do this just by ...
  • 04:54: The key to unlocking the mystery lay in finding a mathematical description for the blackbody spectrum.
  • 07:09: ... searching for a new mathematical approach to deriving the blackbody spectrum, he needed some sort of math ...
  • 08:59: ... given a mathematical form for the blackbody spectrum, it was possible to do this just by ...
  • 07:09: ... searching for a new mathematical approach to deriving the blackbody spectrum, he needed some sort of math trick to ...
  • 04:54: The key to unlocking the mystery lay in finding a mathematical description for the blackbody spectrum.
  • 08:59: ... given a mathematical form for the blackbody spectrum, it was possible to do this just by varying ...
  • 06:37: ... they tried to mathematically distribute heat energy to equipartitionates across possible energy ...
  • 06:51: ... Mathematically, Rayleigh and Jeans were chasing Zeno's tortoise, infinitely dividing the ...
  • 06:37: ... they tried to mathematically distribute heat energy to equipartitionates across possible energy states, way too ...
  • 06:51: ... Mathematically, Rayleigh and Jeans were chasing Zeno's tortoise, infinitely dividing the smallest ...

2016-06-08: New Fundamental Particle Discovered?? + Challenge Winners!

  • 13:01: Blah, blah, math, blah.

2016-06-01: Is Quantum Tunneling Faster than Light?

  • 01:30: French mathematician and physicist Louis de Broglie figured out that any material object is really a matter wave.

2016-05-25: Is an Ice Age Coming?

  • 12:12: 4798Alexander4798 asks, is the universe behaving its way because math, or is math behaving its way because universe?
  • 12:28: My guess-- the universe doesn't know any math.
  • 14:39: This gets us back to the idea of whether the universe knows math.
  • 12:12: 4798Alexander4798 asks, is the universe behaving its way because math, or is math behaving its way because universe?
  • 12:37: Mathematics is a model that we use to describe the behavior of the universe.
  • 14:32: But, for example, a stress energy momentum pseudo tensor isn't mathematically the same thing as classical energy.
  • 14:43: The universe is mechanistic and its behavior results in emergent mathematical laws that allow us to model and predict its behavior.
  • 15:05: It just acts according to a deep, and presumably very simple, set of fundamental rules that give rise to mathematical relationships.
  • 14:43: The universe is mechanistic and its behavior results in emergent mathematical laws that allow us to model and predict its behavior.
  • 15:05: It just acts according to a deep, and presumably very simple, set of fundamental rules that give rise to mathematical relationships.
  • 14:43: The universe is mechanistic and its behavior results in emergent mathematical laws that allow us to model and predict its behavior.
  • 15:05: It just acts according to a deep, and presumably very simple, set of fundamental rules that give rise to mathematical relationships.
  • 14:32: But, for example, a stress energy momentum pseudo tensor isn't mathematically the same thing as classical energy.
  • 12:37: Mathematics is a model that we use to describe the behavior of the universe.

2016-05-18: Anti-gravity and the True Nature of Dark Energy

  • 06:58: This is not just some math trick.
  • 09:19: Relativistically, negative pressure has to do the opposite of positive pressure and results in anti-gravity, because math.
  • 06:58: This is not just some math trick.
  • 06:54: That's what anti-gravity looks like mathematically.

2016-04-27: What Does Dark Energy Really Do?

  • 07:10: However, this accelerating expansion can be explained with the same bit of math, the cosmological constant, pointing to the same physics, dark energy.
  • 11:34: Thomas Waclav has a reasonable concern about just adding stuff to your math until it works.
  • 07:53: Let's take a mathematical ride into the far future, when the galaxies will be so far away that the density of the universe will be basically zero.

2016-04-20: Why the Universe Needs Dark Energy

  • 10:56: But if you have a knack for math and a passion for physics, that shouldn't deter you.

2016-04-13: Will the Universe Expand Forever?

  • 01:09: We'll need to peer into the mathematics of general relativity.
  • 03:07: The mathematical step from Newton's gravity to escape velocity comes from thinking about energy.
  • 01:09: We'll need to peer into the mathematics of general relativity.

2016-04-06: We Are Star Stuff

  • 00:35: These can all be described with chalkboard math.
  • 00:39: ... they manifest through their vibrations, these all lend themselves to mathematical representations that even our own limited minds can ...

2016-03-30: Pulsar Starquakes Make Fast Radio Bursts? + Challenge Winners!

  • 03:05: OK, now for the mathy one.

2016-03-23: How Cosmic Inflation Flattened the Universe

  • 07:17: But this bit of math gives us exactly the type of expansion that we need for inflation.
  • 06:48: Actually, Einstein came up with the exact mathematical description that we need-- an antigravity term called the cosmological constant.

2016-03-09: Cosmic Microwave Background Challenge

  • 01:19: The first one is purely conceptual and requires no math, while the second most definitely requires math.
  • 02:39: Seriously, no math required.
  • 02:42: ... and the math-y question-- just before the CMB was created, the universe was filled with ...

2016-03-02: What’s Wrong With the Big Bang Theory?

  • 01:06: ... size by rewinding the laws of physics, and in particular running the math of Einstein's general theory of relativity ...

2016-02-24: Why the Big Bang Definitely Happened

  • 01:15: ... descriptions are in the mathematical language of physics, and they build on and are supported by many ...
  • 02:28: If we rewind the universe using the mathematics of general relativity, then the further back you go, the smaller the universe is.
  • 01:15: ... descriptions are in the mathematical language of physics, and they build on and are supported by many ...
  • 02:28: If we rewind the universe using the mathematics of general relativity, then the further back you go, the smaller the universe is.

2016-02-17: Planet X Discovered?? + Challenge Winners!

  • 05:44: To answer this, you actually need some math.

2016-01-20: The Photon Clock Challenge

  • 00:06: Now, this one is conceptual, not mathematical.

2015-12-09: How to Build a Black Hole

  • 00:42: And just because something exists in the mathematics does not mean it has to exist in reality.

2015-11-25: 100 Years of Relativity + Challenge Winners!

  • 01:32: But for now we have some math to do and it's all going to be Newtonian.
  • 00:36: ... of thought experiments, simple statements about reality and yet the mathematical description that flowers from those statements describes our universe ...

2015-10-28: Is The Alcubierre Warp Drive Possible?

  • 00:45: ... choice of the word "warp." Alcubierre constructed a warp field in the mathematical language of Einstein's theory of general relativity, a real solution to ...

2015-10-07: The Speed of Light is NOT About Light

  • 02:17: And there's this sense that physics might be done, except there are hints of something horribly wrong lurking in the math-- actually, two hints.
  • 04:17: This transformation thing, it's like a mathy magic wand that you wave at your description of spacetime or your physical laws.

2015-09-23: Does Dark Matter BREAK Physics?

  • 07:10: But it's all mathematical fantasy until we detect the particle.

2015-08-27: Watch THIS! (New Host + Challenge Winners)

  • 04:24: ... the answer to that question, along with all the math that we used to figure it out, can be accessed at this document with ...
  • 04:35: Well, I think it's really important that you actually go and look at the math.
  • 04:47: But in the end, sometimes you just got to do the math.

2015-08-19: Do Events Inside Black Holes Happen?

  • 13:07: ... that right-- and shoofle both asked whether there are some more mathematical resources or papers that I could give you explaining the same ...

2015-08-12: Challenge: Which Particle Wins This Race?

  • 00:09: This time around, you're going to need some math, and you'll need to be familiar with high school level physics.

2015-08-05: What Physics Teachers Get Wrong About Tides!

  • 04:09: More important, the math of assuming the bulges are being lifted doesn't work out.
  • 07:45: Second, in the simple model of a water world Earth, the math says that the water level should vary by about 3/4 of a meter between high and low tide.
  • 12:56: ... that I've linked in the description that give you a slightly more mathematical treatment of ...

2015-07-29: General Relativity & Curved Spacetime Explained!

  • 07:21: Unfortunately, the math gets heavier here and good analogies are harder to come by.

2015-07-22: SPECIAL ANNOUNCEMENT + Flat Spacetime Geometry Comments

  • 01:47: That's what studying physics is like when you're trying to do it at any depth, even if you're not getting into the math.

2015-07-15: Can You Trust Your Eyes in Spacetime?

  • 06:57: ... the physical world as geometric objects and relations in a tenseless mathematical space, we can discover facts about physics just by exploring geometry in ...

2015-07-08: The Leap Second Explained

  • 00:10: Supposedly, leap seconds are related to this slowing rotation, but the math seems to be way off.

2015-07-08: Curvature Demonstrated + Comments

  • 04:41: Patch by patch, lay down a regular xy grid like you do in math class.

2015-07-02: Can a Circle Be a Straight Line?

  • 02:22: Let's start with this picture of the flat Euclidean 2D plane from high school math class.
  • 01:33: ... on what we really mean by straight line and by flat verses curved mathematical ...
  • 08:07: In the meantime, you can put your questions about geodesics and curved mathematical spaces down in the comments below.
  • 01:33: ... on what we really mean by straight line and by flat verses curved mathematical ...
  • 08:07: In the meantime, you can put your questions about geodesics and curved mathematical spaces down in the comments below.
  • 01:33: ... on what we really mean by straight line and by flat verses curved mathematical spaces. ...
  • 08:07: In the meantime, you can put your questions about geodesics and curved mathematical spaces down in the comments below.
  • 03:26: Mathematicians realized a long time ago that this definition generalizes very nicely and it's also very useful.

2015-06-17: How to Signal Aliens

  • 08:00: ... understand and make it sensible to non-professionals without using any math. ...

2015-05-20: The Real Meaning of E=mc²

  • 03:32: Whenever you turn on a flashlight, its math starts to drop immediately.

2015-05-06: Should the First Mars Mission Be All Women?

  • 04:43: But what Greene doesn't give us is an actual numerical estimate of the savings, so I did some rough math.

2015-04-29: What's the Most Realistic Artificial Gravity in Sci-Fi?

  • 06:43: ... adviser for "Battlestar Galactica" and the movie "Gravity," did the math. ...

2015-04-22: Are Space and Time An Illusion?

  • 04:13: ... shortly after relativity first came out, a former math professor of Einstein's named Hermann Minkowski noticed that the ...
  • 05:14: They're more like the XY grid we use in math class, useful for talking about the board, but arbitrary and inherently meaningless.
  • 04:13: ... shortly after relativity first came out, a former math professor of Einstein's named Hermann Minkowski noticed that the spacetime ...
  • 04:33: Instead, it's a four dimensional non-Euclidean mathematical space that's just there.
  • 04:42: That 4D mathematical space is spacetime.
  • 04:33: Instead, it's a four dimensional non-Euclidean mathematical space that's just there.
  • 04:42: That 4D mathematical space is spacetime.
  • 04:33: Instead, it's a four dimensional non-Euclidean mathematical space that's just there.
  • 04:42: That 4D mathematical space is spacetime.

2015-04-15: Could NASA Start the Zombie Apocalypse?

  • 00:52: ... non-joking textbooks and academic papers have been written with detailed mathematical and computer models of how a zombie epidemic would ...

2015-04-08: Could You Fart Your Way to the Moon?

  • 04:36: Let's do the math.

2015-03-25: Cosmic Microwave Background Explained

  • 02:32: The CNB is one of the closest things to a mathematically perfect thermal spectrum that has ever been observed.

2015-02-25: How Do You Measure the Size of the Universe?

  • 04:42: Step two is, well, annoying math.

2015-02-11: What Planet Is Super Mario World?

  • 02:55: ... using Nintendo emulators, screen capture programs, and actual mathematical ...
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