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2022-12-08: How Are Quasiparticles Different From Particles?

  • 00:03: ... device you’re watching this video on is best understood by thinking about ...
  • 00:25: ... device works because of quasi-particles - a class of strange emergent behaviors ...
  • 02:40: To see how this quasiparticle is more than just “a way of looking at things”, consider perhaps the simplest semiconductor device - the diode.
  • 00:25: ... device works because of quasi-particles - a class of strange emergent behaviors of ...

2022-11-23: How To See Black Holes By Catching Neutrinos

  • 13:33: ... is built to let users browse securely and privately on up to 10 devices at the same time. If you’d like to check it out, there’s a special ...

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

  • 19:36: ... pretty complicated conspiracy of influences connecting every measurement device with every potential measurement subject, and I’ve never heard a good ...

2022-09-14: Could the Higgs Boson Lead Us to Dark Matter?

  • 13:30: NordVPN is a cybersecurity tool that offers you a VPN solution for computer and mobile devices.
  • 13:50: NordVPN can help users analyze their data to note suspicious websites , and one NordVPN account lets you connect up to 6 devices.
  • 13:30: NordVPN is a cybersecurity tool that offers you a VPN solution for computer and mobile devices.
  • 13:50: NordVPN can help users analyze their data to note suspicious websites , and one NordVPN account lets you connect up to 6 devices.

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

  • 04:06: Upon measurement it will become fixed along the axis of the measurement device.

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

  • 00:00: ... instructions for building a faster-than-light  propulsion device, along with a reference manual   containing what amounts to all ...
  • 01:25: ... chosen based on the laws of physics alone.  So we build the device with its  incorrect electronic circuitry.   The President ...
  • 06:55: ... versions of all particles with quantum spin.  If we build the device with positions that   are spinning the wrong way then, I ...
  • 11:52: ... We might build a time-forward,  right-handed, electronic device instead of   the alien’s intended time-reversed, ...
  • 06:55: ... made other choices differently? Let's say that this rather finicky device   also cares about the handedness of the positron. Weirdly, there are ...

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

  • 10:02: ... apparatus.   If it’s a wave it travels both paths of the  device, if a particle it must only travel ...

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

  • 02:30: ... to the spin axis being aligned or anti-aligned with your measurement device, which we’ll call “up” and “down” ...

2022-03-08: Is the Proxima System Our Best Hope For Another Earth?

  • 01:05: But it shone bright from southern India, and there a Jesuit priest peered at Alpha Cen through a newly invented device - the telescope.

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

  • 06:53: ... means bringing lots of particles into the picture - in the measurement device and in your own brain. With enough particles collapse becomes ...

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

  • 14:39: ... NordVPN, you one account lets you connect securely up to 6 devices. They don’t log your activity while you’re online, they’ve got thousands ...

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

  • 06:06: David Deustch gives the example of the perpetual motion machine of the first kind - a device from which infinite energy can be extracted.

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

  • 09:57: ... me run you through it. We’re going to use a Stern-Gerlach device - something we’ve talked about a bunch. Basically it’s a pair of magnets ...
  • 11:11: ... version of the electron to some hypothetical and perhaps impossible device that subjects both branches of the electron wavefunction to a non-linear ...
  • 09:57: ... me run you through it. We’re going to use a Stern-Gerlach device - something we’ve talked about a bunch. Basically it’s a pair of magnets - ...

2021-07-13: Where Are The Worlds In Many Worlds?

  • 08:08: But imagine you placed detector devices in front of those slits to measure which slit the electron passed though.

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

  • 14:24: ... are incredibly useful devices - as well as being used to create squeezed states of light, they’re used ...

2021-02-17: Gravitational Wave Background Discovered?

  • 00:00: ... gwb but it's not there yet but it turns out that we already have another device that may have done the job it's a gravitational wave observatory that ...

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

  • 03:48: Einstein’s thought laboratory - his gedankenlab - was filled with many incredible imaginary devices, but one of his favorites was the photon clock.

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

  • 00:00: ... about watching the community that birthed the world wide web the devices that we use to communicate with each other both through the ...

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

  • 08:02: But Mitchell died before he could conduct the experiment, and so Cavendish inherited and improved the device, and actually made the measurement.
  • 09:08: ... device was so sensitive that it had to be protected from the slightest breeze, ...
  • 09:18: He measured the displacement through a telescope mounted into a hole in the device’s shed.
  • 10:15: ... geometry of modern devices allow more precise positioning between the test masses, and the ...
  • 09:18: He measured the displacement through a telescope mounted into a hole in the device’s shed.
  • 10:15: ... geometry of modern devices allow more precise positioning between the test masses, and the ...

2020-05-18: Mapping the Multiverse

  • 15:31: So to do better you'd need a device traveling faster than that - essentially impossible even for a spacecraft, at least currently.
  • 15:51: No indication has ever been found that the speed of light depends on the speed of the device or of the observer.
  • 15:31: So to do better you'd need a device traveling faster than that - essentially impossible even for a spacecraft, at least currently.

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

  • 08:02: ... Michelson and Morley sought to measure. All they needed was a measuring device capable of traveling at a significant fraction of the speed of light, ...
  • 10:02: ... due to the aether wind, then the speed difference gets flipped when the device is rotated. The interference pattern should shift to reflect this. That ...
  • 10:42: ... wind - if it existed. Of course you know what’s coming - on rotating the device the interference pattern didn’t budge. OK, so maybe the aether happens ...
  • 08:02: ... Michelson and Morley sought to measure. All they needed was a measuring device capable of traveling at a significant fraction of the speed of light, which in ...

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

  • 06:24: ... try to do that in the most subtle way possible. Here’s our measuring device - it’s a series of magnets designed to deflect the electron based on its ...
  • 07:37: ... so, we put this atom along the up path of our device, and we start it out in the off state. If our electron takes the up path ...
  • 09:28: ... to recover the vertical spin because of how we set up the device. ...
  • 09:56: ... so our atomic measurement device doesn’t “collapse the wavefunction.” It doesn't settle measurement ...
  • 10:14: ... information. We only see the crude, macroscopic characteristics of the device - like the position of a pointer on a ...
  • 10:53: ... if you could perfectly measure all particles in your measurement device. But eventually this entanglement cascade reaches the surrounding ...
  • 06:24: ... try to do that in the most subtle way possible. Here’s our measuring device - it’s a series of magnets designed to deflect the electron based on its ...
  • 10:14: ... information. We only see the crude, macroscopic characteristics of the device - like the position of a pointer on a ...
  • 09:56: ... so our atomic measurement device doesn’t “collapse the wavefunction.” It doesn't settle measurement basis. So ...
  • 06:24: ... types are deflected back to their original straight path. By itself this device isn’t useful - electrons passing through will still be in a superposition of ...

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

  • 09:11: Any measurement device must introduce some level of decoherence to the wavefunction before it reaches the screen.
  • 13:34: That includes yourself and your measuring device, unless you know the exact quantum state of all of the particles of both.

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

  • 10:41: ... collapse must be a continuous process between the measurement device and the conscious mind - and definitely not a sudden event caused by the ...

2019-12-02: Is The Universe Finite?

  • 00:39: As soon as we became aware of its existence we’ve been feverishly building better and better devices to collect it.

2019-07-15: The Quantum Internet

  • 09:18: But storing delicate quantum states for any length of time is hard work – especially if you don’t want insanely expensive supercooled devices.

2019-05-16: The Cosmic Dark Ages

  • 12:30: ... on the same network. ExpressVPN creates a secure tunnel between your device and the internet, encrypting all your data so your credit card info, ...

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

  • 14:09: ... of scientific instruments that created the first map of Britain and the device that measures the temperature of the sea from ...

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

  • 14:18: ... the cog half of the device is at the same temperature or higher, It can be shown that it's just as ...
  • 14:38: ... device light enough to rotate its flywheel due to being hit by individual ...

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

  • 00:39: This includes most of the historical devices.
  • 00:55: Many modern “free-energy” devices fall into this category.
  • 04:30: This is actually a specific example of a Maxwell’s demon device, an entropy-reversing thought experiment that we’ve discussed before.
  • 07:52: These are often referred to as over-unity devices – the ratio of energy out to energy in is greater than one.
  • 08:00: ... patent office and the French Academy of Science refuses to even review devices claiming over-unity energy ...
  • 08:15: Now the purveyors of over-unity devices typically do NOT claim to have created perpetual motion devices of the first kind.
  • 08:29: ... most end up shifting their device to the second kind of perpetual motion: they violate the 2nd law of ...
  • 09:20: At best you have a perpetual motion device of the third kind.
  • 10:15: The result is that a positive and negative mass should accelerate indefinitely, potentially powering an infinite energy device.
  • 10:45: Alex Taylor has an especially cool dynamo device in which the masses are contained in a magnetic field.
  • 10:58: We have a rare non-dynamo device from Adrien Romeo, who uses cogs with negative and positive mass teeth.
  • 11:26: If you saw your name and device just now, that means you’re a winner!
  • 00:39: This includes most of the historical devices.
  • 00:55: Many modern “free-energy” devices fall into this category.
  • 07:52: These are often referred to as over-unity devices – the ratio of energy out to energy in is greater than one.
  • 08:00: ... patent office and the French Academy of Science refuses to even review devices claiming over-unity energy ...
  • 08:15: Now the purveyors of over-unity devices typically do NOT claim to have created perpetual motion devices of the first kind.
  • 08:00: ... patent office and the French Academy of Science refuses to even review devices claiming over-unity energy ...
  • 00:55: Many modern “free-energy” devices fall into this category.
  • 08:15: Now the purveyors of over-unity devices typically do NOT claim to have created perpetual motion devices of the first kind.

2019-01-30: Perpetual Motion From Negative Mass?

  • 13:32: I want a device that provides a continuous energy source.

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

  • 12:00: So to recap, virtual particles are best thought of as a mathematical device to represent the behavior of quantum fields.

2018-10-10: Computing a Universe Simulation

  • 03:59: ... hold all of the information in the observable universe within a storage device smaller than the observable universe, which brings us to the first part ...
  • 04:13: ... stores information at the Bekenstein bound, essentially, your memory device is the event horizon of a black ...
  • 03:59: ... hold all of the information in the observable universe within a storage device smaller than the observable universe, which brings us to the first part of the ...

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

  • 14:43: ... doubts, that challenge question is asking for the size of the storage device needed to store all of the information in the observable ...

2018-08-01: How Close To The Sun Can Humanity Get?

  • 12:10: Which is this-- a number of very reasonably point out that the demon or device doesn't really need to remember anything to do its job.

2018-06-20: The Black Hole Information Paradox

  • 13:07: That charge only decays if the black hole is left to its own devices.

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

  • 11:49: Pepsi could extract some free energy if you could build a device that spans several million light years or, I don't know, install some solar panels.

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

  • 05:34: We'd need a network of perfect timing devices scattered across the galaxy.

2018-02-21: The Death of the Sun

  • 11:46: I suppose you'd have preferred some sort of device that can launch a 90 kilogram stone over 300 meters.

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

  • 01:49: Any part of the universe, left to its own devices, always tends to flow back to equilibrium.

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

  • 11:08: All episodes are in 1080p HD and can be viewed across all devices.

2017-01-19: The Phantom Singularity

  • 16:22: ... and large magnetic fields around a very sensitive position measuring device. ...
  • 16:37: Stephen Bachman asks why we don't just put one of these devices in space to see if it works.
  • 16:50: The state owned China Academy of Space Technology announced in December that it's testing the device in orbit.
  • 16:37: Stephen Bachman asks why we don't just put one of these devices in space to see if it works.

2017-01-11: The EM Drive: Fact or Fantasy?

  • 01:52: The device was invented by Roger Shawyer in 1999, and a couple of similar proposals followed, most notably Guido Fetta's Cannae Drive.
  • 03:33: Eagle Works itself had previously tested the device in air at atmospheric pressure and found a positive thrust.
  • 04:02: Thrust was tested with a torsion balance, basically a stiff metal wire on which the device is hung with a counterbalance.
  • 04:32: And that direction reversed when device orientation was switched.
  • 06:05: The big one seems to be that thermal effects could still be a factor, in particular, deformation of the device or the scale due to thermal expansion.
  • 06:15: ... simple test would be to heat the device without a radiation field to see if that heating produces a similar ...
  • 04:32: And that direction reversed when device orientation was switched.

2016-09-29: Life on Europa?

  • 09:45: ... get if you measured one particle with a vertically-aligned measurement device and a second particle with a horizontally-aligned ...

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

  • 05:26: But to measure spin direction, we need to choose an axis to align our measuring device.

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

  • 03:27: A number of luminaries have proposed uses for such a device.
  • 04:35: Let me outline how such a device could populate the galaxy with robotic probes.

2016-08-17: Quantum Eraser Lottery Challenge

  • 00:19: ... to propose a way to use it to create a time-traveling communication device and use it to cheat on the ...
  • 02:44: ... of slight modifications, I think we can turn this into a communication device that can not only send information instantaneously between two points, ...
  • 04:34: So we turn on our device.

2016-08-10: How the Quantum Eraser Rewrites the Past

  • 03:54: But when you place some device in the path of either wave, you mess with this coherence, and so affect the pattern that reaches the screen.
  • 06:37: These devices are beam splitters.

2016-05-04: Will Starshot's Insterstellar Journey Succeed?

  • 04:09: ... a camera, small lasers that work both as thrusters and as communication devices, and perhaps even a small nuclear ...

2015-11-18: 5 Ways to Stop a Killer Asteroid

  • 07:09: ... idea is that you launch a thermonuclear device at the rock, but you lead with a very high speed kinetic impactor, that ...
  • 07:48: And such devices don't exist.

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

  • 03:59: Any FTL device can, in principle, be used to make a time machine.
  • 08:36: ... would lead to the invention of the transistor, a quantum mechanical device, let alone the computer, the smartphone, the Apple ...

2015-10-15: 5 REAL Possibilities for Interstellar Travel

  • 03:16: ... going to assume modern thermonuclear devices and launch with roughly 3/4 of our starship's mass being taken up by ...

2015-06-17: How to Signal Aliens

  • 03:50: And they're probably using, among other things, a device like Kepler to do it.

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

  • 04:03: Sound like a plausible plot device for a fictional, previously unknown disease gets a foothold?
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