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	2022-10-19: The Equation That Explains (Nearly) Everything! 03:36: ... or system travels through the space of all possible quantum states. For classical physics it simplifies to just Kinetic Energy minus Potential ... 08:23: ... which we add to the kinetic term. Here we see a connection to the classical Lagrangian, with is kinetic and potential ... 03:36: ... or system travels through the space of all possible quantum states. For classical physics it simplifies to just Kinetic Energy minus Potential ...
	2022-10-12: The REAL Possibility of Mapping Alien Planets! 19:23: ... constant represents the strength of electromagnetism, and the classical   equation for electrostatic force - coulomb’s law - has charge ...
	2022-08-03: What Happens Inside a Proton? 12:15: ... looks like a crystal - admittedly a 4-dimensional one, but a classical crystal.   And guess what - we understand  how crystals ...
	2022-07-27: How Many States Of Matter Are There? 07:54: The states of matter we’re most familiar with can be explained as particles interacting under classical forces.
	2022-06-15: Can Wormholes Solve The Black Hole Information Paradox? 07:24: ... according to the laws of physics. In a way,   the “classical” and sensible path that we observe is the sum of infinite paths, ... 09:17: ... wormholes. Even though these wormholes don’t really exist in a classical sense,   the fact that they can possibly exist in ...
	2022-02-16: Is The Wave Function The Building Block of Reality? 00:03: ... But there’s one explanation that feels as down to earth as the classical world that we’re trying to explain. Let’s see if it actually makes ... 01:24: ... and the cat is alive or dead, not alive and dead. The quantum becomes classical at some point between the subatomic and the ... 06:04: ... why subatomic systems could be quantum but large systems were always classical. ... 08:55: ... two mysteries of physics. 1. What causes the transition from quantum to classical? And 2. Why can’t gravity be quantized like the other forces. All of the ... 09:25: ... and the gravity of the system will cause it to rapidly decohere into a classical object. Instead of gravity being quantized, Penrose’s theory predicts ... 07:17: ... involved. Small things can stay quantum, but the chance of collapse to classicality increases with size, and big things are essentially never ...
	2022-01-27: How Does Gravity Escape A Black Hole? 08:39: ... to our last argument, and this one works whether we’re talking about the classical gravity of Einstein or some deeper theory of quantum ...
	2022-01-12: How To Simulate The Universe With DFT 05:52: ... by thinking about the completely solvable case of many non-quantum or classical ... 06:37: ... for the classical case we can throw away most of configuration space and consider just the ... 05:52: ... by thinking about the completely solvable case of many non-quantum or classical particles. ...
	2021-12-20: What Happens If A Black Hole Hits Earth? 17:55: ... merge should look almost exactly the same as those produced when classical black holes merge. Emphasis on the ...
	2021-11-17: Are Black Holes Actually Fuzzballs? 09:02: Rather it would grow to produce an agglomerate of strings with the same radius as a classical black hole. 11:02: All classical effects of black holes from general relativity would be preserved. 09:02: Rather it would grow to produce an agglomerate of strings with the same radius as a classical black hole. 11:02: All classical effects of black holes from general relativity would be preserved.
	2021-11-10: What If Our Understanding of Gravity Is Wrong? 02:52: ... curvature in the fabric of space and time  rather than just as a classical ...
	2021-11-02: Is ACTION The Most Fundamental Property in Physics? 05:24: ... Well, if it really is so fundamental then it should apply well beyond classical mechanics and into our modern theories - in particular general ... 08:06: ... of a Principle of Least Proper Time. The reason for this is that in the classical limit proper time becomes kinetic minus potential energy for objects ... 09:56: ... action varied slowly - near it’s stationary points, just like with classical ... 08:06: ... of a Principle of Least Proper Time. The reason for this is that in the classical limit proper time becomes kinetic minus potential energy for objects with ... 05:24: ... Well, if it really is so fundamental then it should apply well beyond classical mechanics and into our modern theories - in particular general relativity and ...
	2021-10-20: Will Constructor Theory REWRITE Physics? 08:20: ... - must differ from regular information media, which would be purely classical. ... 08:34: For example, for systems of quantum information there’s a particular task that is possible that is impossible for classical systems.
	2021-10-13: New Results in Quantum Tunneling vs. The Speed of Light 01:48: Well, nothing in the laws of classical physics anyway.
	2021-10-05: Why Magnetic Monopoles SHOULD Exist 01:11: ... according to classical electromagnetism, it doesn’t matter how many times you slice it - you’ll ... 02:06: And according to classical electrodynamics, moving electric charge is the source of the magnetic field. 02:18: Well, according the classical theory we shouldn’t. 04:21: At least according to classical theory. 02:06: And according to classical electrodynamics, moving electric charge is the source of the magnetic field. 01:11: ... according to classical electromagnetism, it doesn’t matter how many times you slice it - you’ll never get ... 02:18: Well, according the classical theory we shouldn’t. 04:21: At least according to classical theory.
	2021-09-21: How Electron Spin Makes Matter Possible 05:59: ... of this to actual electrons? Well electrons don’t really rotate in the classical sense. They’re quantum objects described by a quantum wavefunction. A ...
	2021-07-07: Electrons DO NOT Spin 01:26: ... a very strange type of angular momentum that somehow exists without classical rotation. In fact the spin of an electron is far more fundamental than ... 02:25: ... This Zeeman effect was explained by Lorentz himself with the ideas of classical physics. If you think of an electron as a ball of charge moving in ... 03:48: ... are point-like - they have zero size, which would make the  idea of classical angular momentum even more nonsensical. Pauli rejected  the idea of ... 05:37: ... field will be deflected by the most - either up or down. If these were classical dipole fields - like actual tiny bar magnets - then the ones that were ... 06:36: ... of Stern-Gerlach magnets,  but now they’re oriented horizontally. Classical dipoles that are at 90 degrees to the field would experience no force ... 11:09: ... way to think about the  angular momentum of an electron is not from classical rotation,   but rather from the fact that they  have a ... 14:32: ... environment with the environment. On   the other hand, classical or  thermodynamic entropy represents information that is hidden ... 03:48: ... are point-like - they have zero size, which would make the  idea of classical angular momentum even more nonsensical. Pauli rejected  the idea of ... 05:37: ... field will be deflected by the most - either up or down. If these were classical dipole fields - like actual tiny bar magnets - then the ones that were only ... 06:36: ... of Stern-Gerlach magnets,  but now they’re oriented horizontally. Classical dipoles that are at 90 degrees to the field would experience no force ... 14:32: ... environment with the environment. On   the other hand, classical or  thermodynamic entropy represents information that is hidden beneath the ... 02:25: ... This Zeeman effect was explained by Lorentz himself with the ideas of classical physics. If you think of an electron as a ball of charge moving in circles around ... 03:48: ... Pauli rejected  the idea of associating such   a classical property like rotation to the electron, instead insisting on calling it a ... 01:26: ... a very strange type of angular momentum that somehow exists without classical rotation. In fact the spin of an electron is far more fundamental than simple ... 11:09: ... way to think about the  angular momentum of an electron is not from classical rotation,   but rather from the fact that they  have a rotational degree of ... 03:48: ... like rotation to the electron, instead insisting on calling it a “classically non-describable ...
	2021-06-23: How Quantum Entanglement Creates Entropy 02:34: ... a full  playlist on the mysteries of what I’ll call   classical entropy and its relationship  to information. But let’s run through ... 05:55: ... and it can also be used to determine how many bits of classical information we can get out of   the system when we make a ... 07:44: ... heads 50%   tails. This is subtly different to the state of a classical coin being either heads OR tails, with a 50% chance of   ... 10:23: ... each separate entangled quantum coin behaves kind of like a regular classical coin -   for example it doesn’t by itself exist in a ... 11:00: ... is the first step in the transition between the quantum and classical world.   Our capacity to observe quantum  effects like ... 11:50: ... at it this way, our classical coin is just like our isolated entangled coin. Except now ... 13:09: ... the 2nd law   of thermodynamics AND the emergence of the classical world from the quantum.   And, as an extra trick, it also ... 07:44: ... heads 50%   tails. This is subtly different to the state of a classical coin being either heads OR tails, with a 50% chance of   each ... 10:23: ... each separate entangled quantum coin behaves kind of like a regular classical coin -   for example it doesn’t by itself exist in a ... 11:50: ... at it this way, our classical coin is just like our isolated entangled coin. Except now we   ... 10:23: ... or tails, not heads and tails. And, just like the regular, classical coin - it has non-zero ... 07:44: ... heads 50%   tails. This is subtly different to the state of a classical coin being either heads OR tails, with a 50% chance of   each after you look at ... 10:23: ... each separate entangled quantum coin behaves kind of like a regular classical coin -   for example it doesn’t by itself exist in a pure superposition of ... 02:34: ... a full  playlist on the mysteries of what I’ll call   classical entropy and its relationship  to information. But let’s run through ... 11:00: ... is the first step in the transition between the quantum and classical world.   Our capacity to observe quantum  effects like ...
	2021-05-19: Breaking The Heisenberg Uncertainty Principle 03:31: ... neither - rather, there are the impressions we receive as large-scale, classical ... 03:45: A quantum object can project its nature up to our classical world in one way or another, but not both. 03:31: ... neither - rather, there are the impressions we receive as large-scale, classical creatures. ...
	2021-04-21: The NEW Warp Drive Possibilities 11:07: Both of these papers are peer reviewed and published in the reputable journal Classical and Quantum Gravity.
	2021-04-07: Why the Muon g-2 Results Are So Exciting! 03:50: Here's the equation for the classical dipole moment for a nonquantum rotating charge. 04:07: But the electron dipole moment is different from the classical one by this factor g. 04:15: So the electron responds to a magnetic field twice as strongly compared to what you'd expect for an equivalent classical rotating charge. 03:50: Here's the equation for the classical dipole moment for a nonquantum rotating charge. 04:15: So the electron responds to a magnetic field twice as strongly compared to what you'd expect for an equivalent classical rotating charge.
	2021-03-09: How Does Gravity Affect Light? 09:17: ... two completely crazy assumptions - first that light acts like a very classical, 17th-century style plane wave so you can use Huygens' ...
	2021-01-12: What Happens During a Quantum Jump? 04:45: He believed it all came down to waves—and that nothing was particularly special about these waves compared to any other kind of classical wave. 04:54: He argued that most “spooky” quantum phenomena could be explained by classical resonance phenomena. 04:45: He believed it all came down to waves—and that nothing was particularly special about these waves compared to any other kind of classical wave.
	2020-12-22: Navigating with Quantum Entanglement 00:00: ... mechanics as only affecting only the smallest scales of reality, with classical reality taking over at some intermediate ...
	2020-12-15: The Supernova At The End of Time 03:37: The new science of quantum mechanics had shattered our classical understanding of the world in many ways.
	2020-09-28: Solving Quantum Cryptography 00:58: ... secrets are safe-ish for now because the most powerful classical computers will take thousands to billions of years to find those ... 01:23: ... just last year, Google’s quantum computer, Sycamore, outsped the best classical computers for a very specific ... 01:33: ... system exponentially faster than would have been possible with a pure classical ... 04:40: ... you try prime factorization using a classical computer you’re stuck using an algorithm similar to one that was ... 06:21: It would take at least as long, or require at least as many parallel classical computers. 06:30: Classical computers store information in bits that are either 0 or 1. 07:23: ... guesses but it’s no more likely to be the correct one than if you used a classical ... 12:45: So far there’s no known classical or quantum algorithm that solves it quickly for large lattices. 12:58: ... is whether these algorithms are really robust against quantum and classical ... 13:44: In fact, there’s no guarantee a classical computer won’t come up with a fast algorithm to solve them. 12:58: ... is whether these algorithms are really robust against quantum and classical attacks. ... 01:33: ... system exponentially faster than would have been possible with a pure classical computer. ... 04:40: ... you try prime factorization using a classical computer you’re stuck using an algorithm similar to one that was developed over ... 07:23: ... guesses but it’s no more likely to be the correct one than if you used a classical computer. ... 13:44: In fact, there’s no guarantee a classical computer won’t come up with a fast algorithm to solve them. 00:58: ... secrets are safe-ish for now because the most powerful classical computers will take thousands to billions of years to find those factors, ... 01:23: ... just last year, Google’s quantum computer, Sycamore, outsped the best classical computers for a very specific ... 06:21: It would take at least as long, or require at least as many parallel classical computers. 06:30: Classical computers store information in bits that are either 0 or 1.
	2020-08-17: How Stars Destroy Each Other 03:30: They result when denser streams of matter hit the white dwarf and flare due to heat, but do not produce the storm of fusion of the classical nova. 03:40: But as Dr Shara discovered, it turns out that dwarf novae are just what classical nova do between those bigger explosions. 03:57: That placed it exactly where those royal astronomers saw their classical nova. 04:21: 50 or so classical novae go off in our galaxy every year. 03:30: They result when denser streams of matter hit the white dwarf and flare due to heat, but do not produce the storm of fusion of the classical nova. 03:40: But as Dr Shara discovered, it turns out that dwarf novae are just what classical nova do between those bigger explosions. 03:57: That placed it exactly where those royal astronomers saw their classical nova. 04:21: 50 or so classical novae go off in our galaxy every year.
	2020-07-28: What is a Theory of Everything: Livestream 00:00: ... who um who i'm also musicians so you know i was just i'm a big fan of classical indian music i have friends who you know their approach to playing ...
	2020-06-22: Building Black Holes in a Lab 09:19: ... useful as classical analogs are, Hawking radiation is ultimately a quantum mechanical ...
	2020-05-11: How Luminiferous Aether Led to Relativity 03:25: ... pattern in the density of the air. All familiar waves - what we’ll call classical waves - are a chain reaction that propagates an energy pattern through ... 06:22: ... bow on it by demonstrating the existence of the luminiferous aether as a classical medium for the propagation of ... 06:48: ... classical waves travel at a constant speed relative to their medium. For example, ... 07:19: ... I’d wanna hope Galilean relativity is right OK, so if light is a classical wave in some medium then we should see changes in the apparent speed of ... 11:04: ... to be no luminiferous aether - at least, not one that resembled a classical medium for wave propagation. The speed of light appeared to be ... 12:25: ... that the aether is disproved - but let’s be clear. The aether as a classical medium for light is dead. However the general concept of the aether sort ... 06:22: ... bow on it by demonstrating the existence of the luminiferous aether as a classical medium for the propagation of ... 11:04: ... to be no luminiferous aether - at least, not one that resembled a classical medium for wave propagation. The speed of light appeared to be independent of ... 12:25: ... that the aether is disproved - but let’s be clear. The aether as a classical medium for light is dead. However the general concept of the aether sort of has ... 07:19: ... I’d wanna hope Galilean relativity is right OK, so if light is a classical wave in some medium then we should see changes in the apparent speed of light ... 03:25: ... pattern in the density of the air. All familiar waves - what we’ll call classical waves - are a chain reaction that propagates an energy pattern through some ... 06:48: ... classical waves travel at a constant speed relative to their medium. For example, sound ... 03:25: ... pattern in the density of the air. All familiar waves - what we’ll call classical waves - are a chain reaction that propagates an energy pattern through some ... 06:48: ... classical waves travel at a constant speed relative to their medium. For example, sound waves ...
	2020-03-16: How Do Quantum States Manifest In The Classical World? 00:20: ... states at once - what we call a “superposition” of states." But in the classical world of large scales, things are either this or that. The famous ... 01:48: ... quantum world can survive this decoherence and become manifest in the classical world. To get the entire answer, we need to think about quantum ... 03:12: ... NOT find that there’s zero spin in that direction, as you’d expect for a classical spinning object. Instead the electron will randomly shift ot having left ... 18:58: ... declines our offer of quantum immortality, saying "I'll stick with classical immortality, thank you". thanks for commenting Keith Richards, I hope ... 01:48: ... properties of the atoms. Rather, the information that defines these classical properties exists in the fantastically complex network of entanglement between ... 03:12: ... NOT find that there’s zero spin in that direction, as you’d expect for a classical spinning object. Instead the electron will randomly shift ot having left or right ...
	2020-02-24: How Decoherence Splits The Quantum Multiverse 00:29: Sure - but it’s also the elusive dividing line between the quantum and classical worlds.
	2020-02-18: Does Consciousness Influence Quantum Mechanics? 03:34: ... collapse seems essential because our large-scale, classical world isn’t made of probability clouds, it’s made of objects with ... 03:45: So when does the quantum transition to the classical actually happen? 05:42: With no clear boundary between the quantum and the classical, where does the collapse of the wavefunction happen?
	2019-10-15: Loop Quantum Gravity Explained 03:33: ... classical physics, we have variables like position, time, momentum, energy - ... 11:54: ... old general relativity on large, non-quantum scales - in the so-called classical ... 03:33: ... classical physics, we have variables like position, time, momentum, energy - mathematical ...
	2019-07-15: The Quantum Internet 00:43: ... these processes work in the realm of classical cryptography, but one day soon this may not be enough and so quantum ... 01:09: ... storage, and transmission of information, typically in the form of classical bits, 1’s and ... 01:49: Quantum information theory parallels classical information theory, but instead of using classical bits, it deals bits of quantum information - qubits. 02:53: ... for sharing cryptographic keys that should be far more secure than classical ... 03:34: ... transfer classical information using light, each bit is encoded with many photons, and many ... 05:21: ... communication nor teleportation of actual matter, because a classical, sub-light-speed channel is still needed to extract the ... 05:41: Think of it this way: Two people, let’s say Bill and Ted, are connected by a classical channel and a quantum channel. 05:49: ... classical channel can be anything - a fibre optic cable, a telephone wire, the ... 07:44: This measurement outcome is encoded in two classical bits which Bill sends to Ted along the classical channel. 09:45: ... entangled qubits, which they could use to communicate by exchanging classical Bell measurement ... 10:52: We currently live in the information age, but it’s a classical information age. 09:45: ... entangled qubits, which they could use to communicate by exchanging classical Bell measurement ... 01:09: ... storage, and transmission of information, typically in the form of classical bits, 1’s and ... 01:49: Quantum information theory parallels classical information theory, but instead of using classical bits, it deals bits of quantum information - qubits. 07:44: This measurement outcome is encoded in two classical bits which Bill sends to Ted along the classical channel. 01:09: ... storage, and transmission of information, typically in the form of classical bits, 1’s and ... 05:41: Think of it this way: Two people, let’s say Bill and Ted, are connected by a classical channel and a quantum channel. 05:49: ... classical channel can be anything - a fibre optic cable, a telephone wire, the Pony ... 07:44: This measurement outcome is encoded in two classical bits which Bill sends to Ted along the classical channel. 02:53: ... for sharing cryptographic keys that should be far more secure than classical counterparts. ... 00:43: ... these processes work in the realm of classical cryptography, but one day soon this may not be enough and so quantum cryptographic ... 05:21: ... communication nor teleportation of actual matter, because a classical, sub-light-speed channel is still needed to extract the ...
	2019-05-16: The Cosmic Dark Ages 13:07: ... mechanics. One thing I learned is that you guys already know a lot about classical encryption. You dropped a bunch of knowledge - let's see what you had to ... 14:38: ... relays are weak points, especially if the states revert to classical information while being boosted. We'll talk about quantum relays in an ... 13:07: ... mechanics. One thing I learned is that you guys already know a lot about classical encryption. You dropped a bunch of knowledge - let's see what you had to ...
	2019-05-09: Why Quantum Computing Requires Quantum Cryptography 01:12: This allows the iterations of certain types of calculation to be done in parallel, and vastly more quickly than in a classical computer. 01:33: For the best description of classical internet cryptography … on the internet … head to Infinite Series. 02:57: At least as long as we're limited by classical computing. 10:29: But there are classical authentication methods that can make this very difficult. 13:03: For now, the classical internet is still moderately safe – or at least it’s biggest vulnerability is human stupidity. 13:16: But come quantum computers even the smartest classical security protocols will be compromised. 10:29: But there are classical authentication methods that can make this very difficult. 01:12: This allows the iterations of certain types of calculation to be done in parallel, and vastly more quickly than in a classical computer. 02:57: At least as long as we're limited by classical computing. 01:33: For the best description of classical internet cryptography … on the internet … head to Infinite Series. 13:03: For now, the classical internet is still moderately safe – or at least it’s biggest vulnerability is human stupidity. 01:33: For the best description of classical internet cryptography … on the internet … head to Infinite Series. 13:16: But come quantum computers even the smartest classical security protocols will be compromised.
	2019-03-13: Will You Travel to Space? 12:52: ... gives a complete breakdown of songs and artists in every genre from pop, classical, rap, jazz, electronic, country, rock, and more. And this week they have ...
	2019-03-06: The Impossibility of Perpetual Motion Machines 06:30: Indeed there are ideal systems that, from pure classical principles should run forever.
	2018-12-12: Quantum Physics in a Mirror Universe 00:02: ... broken symmetry of parity in a mirror reflected space-time whether it's classical mechanics or quantum mechanics learning the ins and out of physics is ...
	2018-11-07: Why String Theory is Right 05:54: ... quantization I mean taking a classical large-scale description of something like a ball flying through the air ... 06:05: ... do this, you basically take the classical equations of motion and follow a standard recipe to turn them into wave ... 05:54: ... quantization I mean taking a classical large-scale description of something like a ball flying through the air or a ...
	2018-09-20: Quantum Gravity and the Hardest Problem in Physics 08:10: For example, classical electromagnetism becomes quantum electrodynamics when you quantize the electron field and the electromagnetic field.
	2018-08-23: How Will the Universe End? 13:55: ... that the g-factor of the electron should have been equal to 1 in the classical case and 2 in the quantum ... 14:59: That's the classical theory, which is wrong-- and also suggested that electrons should spin faster than light. 13:55: ... that the g-factor of the electron should have been equal to 1 in the classical case and 2 in the quantum ... 14:59: That's the classical theory, which is wrong-- and also suggested that electrons should spin faster than light. 14:35: Classically, we assumed the electron was a ball of charged stuff, hence g equals 1.
	2018-08-15: Quantum Theory's Most Incredible Prediction 01:28: ... than the simple opposite charges attract, like charges repel of classical ... 01:41: Well, because it makes some predictions that clash with the classical theory. 04:12: Despite not being the same as classical rotation, this quantum spin does grant electrons a dipole magnetic field. 05:09: ... electron, you get almost exactly twice the value you'd expect for a tiny classical sphere with the same charge and angular momentum as an ... 05:23: This difference between the quantum versus classical magnetic moments for the electron is called the G factor. 05:30: It's the number you need to multiply the classical value by to get the right answer. 01:28: ... than the simple opposite charges attract, like charges repel of classical electrodynamics. ... 05:23: This difference between the quantum versus classical magnetic moments for the electron is called the G factor. 04:12: Despite not being the same as classical rotation, this quantum spin does grant electrons a dipole magnetic field. 05:09: ... electron, you get almost exactly twice the value you'd expect for a tiny classical sphere with the same charge and angular momentum as an ... 01:41: Well, because it makes some predictions that clash with the classical theory. 06:09: ... interact with an electromagnetic field, it still treats this EM field classically. ...
	2018-07-18: The Misunderstood Nature of Entropy 07:20: ... pressure, density, volume, et cetera have the values we expect from classical ...
	2018-06-20: The Black Hole Information Paradox 13:53: ... we talked about a black hole's electric charge in terms of the classical electromagnetic field which has an existence independent of electric ...
	2018-06-13: What Survives Inside A Black Hole? 05:41: In fact, it's one of Maxwell's equations, which together give the classical description of electromagnetism.
	2018-05-23: Why Quantum Information is Never Destroyed 00:36: Newton's equations for classical mechanics, Maxwell's equations for electromagnetism, and the Schrodinger equation for quantum mechanics.
	2018-05-16: Noether's Theorem and The Symmetries of Reality 06:43: ... action can be used to derive the laws of motion from the equations of classical mechanics to Feynman's path integral formulation of quantum ...
	2018-04-18: Using Stars to See Gravitational Waves 09:10: ... a series of courses that will guide you step-by-step from the basics of classical mechanics through the intricacies of Newtonian ...
	2018-04-04: The Unruh Effect 09:46: ... observe Unruh particles, although analogies have been observed even in classical systems, like this really cool study with water ...
	2017-11-29: Citizen Science + Zero-Point Challenge Answer 00:33: ... trade, a classically trained musician, but as an amateur astronomer, he discovered Uranus and ...
	2017-11-02: The Vacuum Catastrophe 04:12: In fact, in both quantum mechanics and classical mechanics, a particle's equations of motion depend only on changes in energy.
	2017-07-12: Solving the Impossible in Quantum Field Theory 01:38: In old-fashioned classical electrodynamics, we think of each electron as producing an electromagnetic field.
	2017-07-07: Feynman's Infinite Quantum Paths 04:39: And it was borrowed from old-school classical physics. 05:06: For the large-scale classical universe, minimizing proper time lets you derive all equations of motion. 07:34: The familiar paths of the large-scale classical world are just the small set of infinite possible paths that don't cancel each other out. 04:39: And it was borrowed from old-school classical physics. 05:06: For the large-scale classical universe, minimizing proper time lets you derive all equations of motion.
	2017-03-15: Time Crystals! 08:34: ... is to use electron spins, which can represent the ones and zeros of a classical computer in the up-down direction of the ...
	2017-01-11: The EM Drive: Fact or Fantasy? 08:18: ... the quantum vacuum is some sort of almost classical medium, then they argue that the EmDrive could push off it, leaving a ...
	2016-12-21: Have They Seen Us? 17:14: It's a useful classical simplification in both cases.
	2016-11-30: Pilot Wave Theory and Quantum Realism 02:16: ... together in the '20s, they were fervent about the need to reject all classical thinking in interpreting the strange results of early quantum ... 11:50: And I think we need to be dubious about that sort of classical bias. 02:16: ... together in the '20s, they were fervent about the need to reject all classical thinking in interpreting the strange results of early quantum ...
	2016-10-26: The Many Worlds of the Quantum Multiverse 00:09: A huge outstanding question is when and why does the weirdness of quantum mechanics give way to classical physics. 02:19: That collapse signifies the transition between the quantum and classical realms. 05:06: However, there is another way to interpret the transition between the quantum and classical worlds. 00:09: A huge outstanding question is when and why does the weirdness of quantum mechanics give way to classical physics. 02:19: That collapse signifies the transition between the quantum and classical realms. 05:06: However, there is another way to interpret the transition between the quantum and classical worlds.
	2016-09-21: Quantum Entanglement and the Great Bohr-Einstein Debate 01:04: ... looking at it is a pretty fundamental implied assumption behind all of classical ...
	2016-06-22: Planck's Constant and The Origin of Quantum Mechanics 06:11: It was catastrophic because it meant that something was fundamentally wrong with the classical physics that went into the Rayleigh-Jeans law. 06:19: The problem turned out to be that in classical physics, everything can be infinitely divided. 06:11: It was catastrophic because it meant that something was fundamentally wrong with the classical physics that went into the Rayleigh-Jeans law. 06:19: The problem turned out to be that in classical physics, everything can be infinitely divided.
	2016-06-15: The Strange Universe of Gravitational Lensing 11:28: The idea is that a physical system doesn't have the familiar classical properties like position, momentum, spin, et cetera, until it is observed. 12:39: ... means doing something to it that collapses its wave function into the classical physical properties like position and ... 11:28: The idea is that a physical system doesn't have the familiar classical properties like position, momentum, spin, et cetera, until it is observed.
	2016-05-25: Is an Ice Age Coming? 14:32: But, for example, a stress energy momentum pseudo tensor isn't mathematically the same thing as classical energy.
	2016-02-17: Planet X Discovered?? + Challenge Winners! 03:37: The relativistic Doppler effect classically changes the wavelengths of light, blue-shifting approaching material and red-shifting receding material.
	2015-08-19: Do Events Inside Black Holes Happen? 00:13: [THEME MUSIC] Today's episode, we'll only talk about black holes from the perspective of classical general relativity.
	2015-08-05: What Physics Teachers Get Wrong About Tides! 10:44: ... can quantize any classical theory, as long as you are restricting yourself to looking at ... 11:41: ... the other is to try to take field-- classical field theory versions of something and then add to them the machinery of ... 10:44: ... can quantize any classical theory, as long as you are restricting yourself to looking at macroscopic ...
	2015-05-13: 9 NASA Technologies Shaping YOUR Future 01:37: A downloadable insomnia app called Sleep Genius that combines that vibration research with classical music.

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