
20220914: Could the Higgs Boson Lead Us to Dark Matter?
 08:39: In this case, it’s by using a 350 year old law of physics known as conservation of momentum.
 08:48: ... Conservation of momentum tells us that the product of velocity times mass of all ...
 10:30: ... Conservation of momentum tells us that there should be more stuff firing out in the ...


20220615: Can Wormholes Solve The Black Hole Information Paradox?
 01:40: ... from the universe. This conflicts with the law of conservation of quantum information, which is a nonnegotiable constraint of ...
 03:20: ... information seems like it should disappear, violating the law of conservation of quantum information and giving all of its past Hawking ...


20220427: How the Higgs Mechanism Give Things Mass
 02:26: We saw in our episode on Noether’s theorem that these symmetries lead to conservation laws.


20220316: What If Charge is NOT Fundamental?
 05:50: The conservation of fundamental properties defines which interactions are possible and which are impossible.


20211117: Are Black Holes Actually Fuzzballs?
 03:34: And that violates a very deep and fundamental law  the law of conservation of quantum information.


20211110: What If Our Understanding of Gravity Is Wrong?
 06:06: It doesn’t respect conservation of energy or momentum or angular momentum.
 08:15: ... of motion to be extracted in a way that automatically obeys all of our conservation ...
 08:50: ... quadratic Lagrangian” gave the same results as MOND, except that conservation laws were obeyed, and because this was a relativistic theory ...
 16:23: It’s the symmetries of the Lagrangian via Noether’s theorem that yields our conservation laws and ultimately, well, all of physics.


20211020: Will Constructor Theory REWRITE Physics?
 02:40: ... general relativity and quantum mechanics, along with more fundamental conservation laws, or principles, to rule out impossible output states given an input ...
 05:44: Again, this task is impossible, since it’s ruled out by the laws of quantum mechanics and the principle of conservation of energy.
 06:43: ... law of conservation of energy says that it’s impossible to create energy from nothing, and ...


20210803: How An Extreme New Star Could Change All Cosmology
 02:13: ... as the core slowly collapses under its own gravitational crush due to conservation of angular momentum. But typical white dwarfs take from a few hours to a ...


20210707: Electrons DO NOT Spin
 00:22: ... suddenly begin to rotate on the chair. It’s a demonstration of the conservation of angular momentum. The angular momentum of the wheel is changed ...
 00:47: ... rotating with a constant speed. At first glance this appears to violate conservation of angular momentum because there was nothing spinning to start ...
 04:40: ... spin now. It’s an intrinsic angular momentum that plays into the conservation of angular momentum like in the Einstein deHaas effect, and it ...
 10:33: ... motion to changes in coordinate location gives us the law of the conservation of momentum. For related reasons in quantum mechanics position and ...


20210525: What If (Tiny) Black Holes Are Everywhere?
 09:36: That breaks one of the most sacred rules of quantum mechanics  the conservation of quantum information.


20201111: Can Free Will be Saved in a Deterministic Universe?
 02:46: One of the most important rules of quantum mechanics is the principle of conservation of quantum information.
 04:23: ... an entirely new thread of quantum information, in violation with the conservation principle, or two, that this information just not be predictable even in ...
 05:37: Now, creating brand new information explicitly violates conservation of quantum information.


20201104: Electroweak Theory and the Origin of the Fundamental Forces
 02:02: So an ingoing neutron is directly converted into the outgoing proton, electron and neutrino, with all the conservation laws satisfied.


20200622: Building Black Holes in a Lab
 06:33: ... just saying that black holes must lose mass for the sake of energy conservation. ...


20200428: Space Time Livestream: Ask Matt Anything
 00:00: ... turn to another question from there's a couple of good questions on conservation laws so Michael from the community tab asks if I can describe how ...


20200203: Are there Infinite Versions of You?
 07:55: ... these properties  and that tends to be prohibited by a combination of conservation laws and the formation of black ...


20200127: Hacking the Nature of Reality
 07:12: ... conditions include things like conservation of energy and momentum, the behavior of quantum properties like spin, ...


20200106: How To Detect a Neutrino
 04:46: ... ♪ It's sort of cheats energy conservation by taking advantage of the Heisenberg uncertainty principle, ♪ ♪ which ...


20191021: Is Time Travel Impossible?
 06:36: They’re a set of requirements that do things like prevent negative energies and enforce energy conservation.


20190715: The Quantum Internet
 04:18: ... is connected to the law of conservation of quantum information, which we’ve talked about before  it comes from ...


20190403: The Edge of an Infinite Universe
 16:18: Chris Hanline wisely notes that dark energy appears to break the conservation of energy.
 16:25: ... sort of true  except that the law of conservation of energy has a very clear range of validity  it's valid in systems ...
 16:39: In fact conservation of energy comes from this symmetry, as revealed by Noether's theorem.
 16:53: In its most familiar form, conservation of energy doesn't apply and so dark energy CAN be created from nothing.


20190328: Could the Universe End by Tearing Apart Every Atom?
 12:11: ... the final reason to hate on phantom energy: it violates energy conservation in a way far worse than regular dark energy. It violates the same energy ...


20190306: The Impossibility of Perpetual Motion Machines
 00:30: We have perpetual motion machines of the first kind  they violate energy conservation  they pump more energy out than they need to keep running.
 02:41: Now to be fair to the people working during the middle ages and Renaissance, the law of conservation of energy hadn’t been discovered yet.
 08:23: They have various explanations for how they don’t violate conservation of energy.


20190130: Perpetual Motion From Negative Mass?
 09:00: At first glance that sounds like it breaks conservation of momentum and energy.


20190116: Our Antimatter, Mirrored, TimeReversed Universe
 03:02: ... the positively charged Kaon meson decayed in ways that violated parity conservation it turns out that these Kaon particles are great at catching the ...


20181212: Quantum Physics in a Mirror Universe
 00:02: ... same parity so the same response to reflections that's what we mean by conservation of parity at least one of these decay products broke conservation of ...


20180711: Quantum Invariance & The Origin of The Standard Model
 06:19: Change the shape of that wave function with local phase shifts and you actually break conservation of momentum.


20180620: The Black Hole Information Paradox
 01:33: First, we looked at the law of conservation of quantum information.
 02:08: At first glance, the nohair theorem seems to contradict the conservation of information.
 02:27: ... there's nothing about the law of conservation of information that requires information to remain within our accessible ...
 07:16: ... information to Hawking radiation, you may still violate the law of conservation of information just as much as you would by deleting ...
 07:39: The information would be duplicated, violating conservation of information.


20180613: What Survives Inside A Black Hole?
 01:21: ... the nohair conjecture with everything we learned recently about the conservation of quantum ...
 10:31: We discussed recently why quantum mechanics demands the conservation of quantum information.
 11:44: In our last episode we looked at what might be the most fundamental rule in quantum mechanics, the conservation of quantum information.
 12:18: ... is described by quantumfield theory, and unitary evolution and the conservation of probability and information still works ...


20180523: Why Quantum Information is Never Destroyed
 01:16: Today, we learn why conservation of information is such a fundamental requirement of quantum mechanics.
 01:28: An important tool for making predictions with the laws of physics are the conservation laws that we derive from them.
 02:14: Timereversal symmetry isn't covered by Noether's theorem, but it's still tied to a conservation law.
 02:21: The conservation of information.
 03:09: That's what I mean about conservation of information.
 04:36: It ensures conservation of information and timereversal symmetry because of an even more fundamental rule the conservation of probability.
 05:51: ... the Schrodinger equation guarantees time reversibility and so the conservation of information, as do the more advanced formulations of quantum ...
 06:56: ... works, but the condition also ensures timereversal symmetry and conservation of ...
 08:41: ... Copenhagen interpretation of quantum mechanics actually does mess with conservation of ...
 11:03: Noether's theorem predicts the conservation laws of physics from the symmetries of nature.
 11:11: Merissan has plans to use the loss of energy in cosmological redshift as a refutation of conservation of energy arguments.
 11:22: Conservation of energy is completely valid and always applies on the scales of systems that humans deal with.


20180516: Noether's Theorem and The Symmetries of Reality
 00:07: Conservation laws are among the most important tools in physics.
 00:23: [MUSIC PLAYING] Conservation laws are the cheat codes of physics.
 00:37: More than cheat codes, conservation laws are clues to the source code.
 00:49: The connection between conservation laws and symmetry is encapsulated in Noether's theorem.
 01:34: But the failure of energy conservation was still clear from the math of general relativity.
 01:49: She discovered why the law of conservation of energy broke down in general relativity.
 01:57: She realized that all conservation laws arise from a more fundamental relationship, which we call Noether's theorem.
 04:01: Noether's theorem reveals that this time translation symmetry gives us energy conservation.
 04:23: By revealing the underlying source of conservation laws, Noether's theorem handily explains when and why they are broken.
 04:31: That includes the apparent breaking of conservation of energy in general relativity.
 05:00: The law of conservation of energy is fundamental in Newtonian mechanics, in which space and time are unvarying and eternal.
 05:08: But in Einstein's universe, energy conservation is only valid as a special case.
 05:33: ... saves energy conservation by incorporating the entire universe's gravitational potential energy to ...
 07:54: This symmetry leads to the conservation of electric charge and electric current.
 10:07: Fabrice, your continuously timesymmetric contributions are fundamental to the conservation of "Space Time." So thank you.


20180228: The Trebuchet Challenge
 05:04: The law of conservation of energy tells us that the sum of kinetic and potential energies of the projectile and the counterweight are conserved.


20180214: What is Energy?
 01:43: Besides the whole coinventing calculus thing, Leibniz's vis viva seen as a competition to Newton's idea of conservation of momentum.
 02:20: When she introduced the idea of gravitational potential energy, she put the laws of conservation of energy and momentum on equal footing.
 02:40: The law of conservation of energy is an incredibly powerful tool.
 06:55: Just adding conservation of energy to Newton's mechanics gives an extra constraint that allows us to solve problems we couldn't otherwise.
 07:42: ... Bernoulli's equation predicts the flow of fluids by demanding the conservation of the kinetic and potential energy of the fluid and also of the ...
 07:56: ... the concept of energy and its conservation has led to new types of mechanics that have supplanted Newtonian ...
 09:45: See, the law of conservation of energy arises because of symmetry, in particular time translational symmetry.
 10:06: For example, the law of conservation of momentum is due to spatial translation symmetry.
 10:16: ... relationship between conservation laws and symmetries was discovered by mathematician Emmy Noether and ...
 10:53: ... actually, conservation of energy is generally invalid in the context of Einstein's general ...


20180124: The End of the Habitable Zone
 12:48: And conservation of energy demands that the black hole give up mass.


20171102: The Vacuum Catastrophe
 00:35: Virtual particles appear and vanish from nowhere in seeming violation of our intuitions about the conservation of mass and energy.


20171025: The Missing Mass Mystery
 11:59: ... introduce energy into the universe and therefore violate the law of conservation of ...


20171019: The Nature of Nothing
 05:24: For example, quantum conservation laws must be obeyed, so most virtual particles are created in particleantiparticle pairs.


20170802: Dark Flow
 10:24: By themselves, they don't obey momentum conservation.
 10:30: Incoming and outgoing particles must obey energy and momentum conservation.


20170726: The Secrets of Feynman Diagrams
 04:35: ... because of conservation laws energy and momentum conservation requires that particles not just ...


20170222: The Eye of Sauron Reveals a Forming Solar System!
 02:51: Conservation of angular momentum has the central star spinning rapidly.


20170111: The EM Drive: Fact or Fantasy?
 02:33: The law of conservation of momentum demands this.
 02:56: Which is to say, this explanation breaks the law of conservation of momentum.


20161214: Escape The Kugelblitz Challenge
 06:32: ... and uses an impossible EM Drive technology that allows it to ignore conservation of momentum, so the satellites don't get ricocheted back to ...


20161208: What Happens at the Event Horizon?
 14:14: ... go on to talk about how pilot wave theory might explain the apparent conservation of momentumbreaking ...


20160525: Is an Ice Age Coming?
 12:01: Last week, we wrapped up our conversation on dark energy, talking about antigravity, negative pressure, and conservation of energy.
 13:58: ... but I don't think it's a speculative statement to say that the law of conservation of energy, as we learned when we studied Newtonian mechanics, is a ...
 14:12: ... quantity gravitational potential energy in order to preserve energy conservation. ...
 14:51: Conservation of energy is one such law that work in flat space time.


20160518: Antigravity and the True Nature of Dark Energy
 11:29: See, the law of conservation of energy no longer applies in an expanding universe.


20160413: Will the Universe Expand Forever?
 09:36: It'll shatter our intuitions about energy conservation and gravity on the largest scales of spacetime.


20160316: Why is the Earth Round and the Milky Way Flat?
 10:26: They also give us things like the Laws of Conservation of Energy and of Linear and Angular Momentum, topics that we will get to.


20160106: The True Nature of Matter and Mass
 02:20: The photons exert a force on the box, the box also exerts a force on the photons Newton's Third Law, which gives us the conservation of momentum.


20151015: 5 REAL Possibilities for Interstellar Travel
 02:10: Conservation of momentum sucks.


20150527: Habitable Exoplanets Debunked!
 09:38: The bottom line answer is that in general relativity, there actually is no such thing as energy conservation for the universe as a whole.
 09:45: How that can be, even though locally, in local pockets, you can have energy conservation, seems weird and contradictory.


20150415: Could NASA Start the Zombie Apocalypse?
 05:04: And they come out from straight up momentum conservation.
 05:23: ... loss of mass into account and use a more correct version of momentum conservation called the rocket equation that compensates for ...
 05:32: Dariodario alluded to the rocket equation in that form of calculating momentum conservation in his comment.


20150408: Could You Fart Your Way to the Moon?
 02:58: Conservation of momentum.
 04:57: So the net result for momentum conservation?


20150318: Can A Starfox Barrel Roll Work In Space?
 04:56: Space telescopes, like Hubble and Kepler, also use angular momentum conservation to turn without thrusters.
