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

  • 03:38: ... high-energy neutrinos, interaction are with an atomic nucleus and that interaction can transmute the neutrino into its ...
  • 17:49: ... this up-down-quark matter may lead to perfectly stable “nuclei” with atomic masses as low as ...
  • 03:38: ... high-energy neutrinos, interaction are with an atomic nucleus and that interaction can transmute the neutrino into its high-mass ...

2022-11-16: Are there Undiscovered Elements Beyond The Periodic Table?

  • 00:38: ... of the periodic table are defined by the number of protons in the atomic nucleus - the atomic number - so how can there be gaps for new ...
  • 00:58: But the fact is, gaps in the periodic table did exist - atomic numbers that seemed to appear naturally.
  • 01:29: He arranged the known elements according to their atomic weight, and noticed periodic recurrences of chemical properties as atomic weight increased.
  • 05:48: Larger atomic number tends to yield fewer stable isotopes and shorter half-lives.
  • 06:13: ... actually the dynamics of the atomic nucleus are so complicated that it takes sophisticated computer modeling ...
  • 06:34: An atomic nucleus is a place of extreme forces in delicate balance.
  • 07:59: For smaller nuclei - up to an atomic number of 20 - an even split of protons and neutrons is usually the most stable.
  • 00:38: ... of the periodic table are defined by the number of protons in the atomic nucleus - the atomic number - so how can there be gaps for new ...
  • 06:13: ... actually the dynamics of the atomic nucleus are so complicated that it takes sophisticated computer modeling to ...
  • 06:34: An atomic nucleus is a place of extreme forces in delicate balance.
  • 00:38: ... of the periodic table are defined by the number of protons in the atomic nucleus - the atomic number - so how can there be gaps for new ...
  • 05:48: Larger atomic number tends to yield fewer stable isotopes and shorter half-lives.
  • 07:59: For smaller nuclei - up to an atomic number of 20 - an even split of protons and neutrons is usually the most stable.
  • 00:38: ... table are defined by the number of protons in the atomic nucleus - the atomic number - so how can there be gaps for new ...
  • 00:58: But the fact is, gaps in the periodic table did exist - atomic numbers that seemed to appear naturally.
  • 01:29: He arranged the known elements according to their atomic weight, and noticed periodic recurrences of chemical properties as atomic weight increased.

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

  • 12:36: Lassi Tiihonen and John Rizzo raise an excellent point: our strong force video didn’t really explain how atomic nuclei stick together.

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

  • 00:04: It’s strange enough for atoms, but positively bizarre when we get to the atomic nucleus.
  • 01:13: But if the strong force is so strong, why is it confined to the atomic nucleus?
  • 05:12: We need this attraction to hold quarks together in nucleons, and nucleons together in the atomic nucleus.
  • 05:19: And that attractive force needs to be stronger than the repulsive electromagnetism, while also vanishing outside the atomic nucleus.
  • 06:20: So an electron bound to an atomic nucleus will feel less force from the nucleus at larger orbitals.
  • 16:36: Today we’d doing comment responses for the last two episodes: there was the one on lattice QCD, where we talked about simulating the atomic nucleus.
  • 00:04: It’s strange enough for atoms, but positively bizarre when we get to the atomic nucleus.
  • 01:13: But if the strong force is so strong, why is it confined to the atomic nucleus?
  • 05:12: We need this attraction to hold quarks together in nucleons, and nucleons together in the atomic nucleus.
  • 05:19: And that attractive force needs to be stronger than the repulsive electromagnetism, while also vanishing outside the atomic nucleus.
  • 06:20: So an electron bound to an atomic nucleus will feel less force from the nucleus at larger orbitals.
  • 16:36: Today we’d doing comment responses for the last two episodes: there was the one on lattice QCD, where we talked about simulating the atomic nucleus.

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

  • 00:00: ... probably start by learning to simulate even a   single atomic nucleus. But it’s taken  some of the most incredible ...
  • 01:15: ... of electrons is   comparatively baby stuff compared to the atomic nucleus. Every proton and neutron is composed   of 3 quarks stuck ...

2022-07-27: How Many States Of Matter Are There?

  • 05:05: ... consists of composite particles: the electrons are elementary, but the atomic nuclei are little bundles of nucleons - protons and ...
  • 07:24: Our quark-gluon plasma is actually the analogy of gas in atomic matter, even if it’s behavior is more liquid.
  • 09:19: If that’s true for the subatomic states within the atomic states, what about states formed by components larger than atoms and molecules?
  • 07:24: Our quark-gluon plasma is actually the analogy of gas in atomic matter, even if it’s behavior is more liquid.
  • 05:05: ... consists of composite particles: the electrons are elementary, but the atomic nuclei are little bundles of nucleons - protons and ...
  • 09:19: If that’s true for the subatomic states within the atomic states, what about states formed by components larger than atoms and molecules?

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

  • 08:15: ... a black hole formation was discovered in 1939 by Robert Oppenheimer - of atomic bomb fame - along with his student Hartland Snyder They approximated the ...

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

  • 01:52: ... of its similarity to the proton - they’re practically twins in the atomic nucleus, occurring with similar numbers and almost the same mass, with ...

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

  • 09:25: ... as the neutron star’s gravitational field is so intense that atomic nuclei are crushed into a soup of neutrons, a star collapsing into a ...

2021-10-13: New Results in Quantum Tunneling vs. The Speed of Light

  • 00:32: It describes how quantum particles are able to move across seemingly impenetrable barriers - for example, when atomic nuclei decay.
  • 02:03: For example, the protons and neutrons in an atomic nucleus are held in the potential barrier of the strong nuclear force.
  • 00:32: It describes how quantum particles are able to move across seemingly impenetrable barriers - for example, when atomic nuclei decay.
  • 02:03: For example, the protons and neutrons in an atomic nucleus are held in the potential barrier of the strong nuclear force.

2021-09-07: First Detection of Light from Behind a Black Hole

  • 04:57: This gas starts to glow in a different way - not from heat, but from the motion of electrons between their atomic energy levels.

2021-07-21: How Magnetism Shapes The Universe

  • 11:08: Electrons and atomic nuclei can be accelerated in this magnetic field to high energies - into what we call cosmic rays.

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

  • 12:07: Splitting happens when phase relations are scrambled due to interactions - and that’s - the entire universe doesn’t split with every atomic wiggle.

2021-06-09: Are We Running Out of Space Above Earth?

  • 15:32: ... so small that they would never, ever merge - even if they got within an atomic nucleus width ...

2021-05-19: Breaking The Heisenberg Uncertainty Principle

  • 10:03: ... have demonstrated this same principle in other systems like entangled atomic clocks, which may one day massively enhance the precision of our GPS ...

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

  • 01:27: ... predicts that certain quantum events - like the electrons moving between atomic energy levels, or the decay of atomic nuclei, can be frozen through the ...
  • 07:47: ... observation of the quantum Zeno effect, including various studies of atomic energy levels, as well as the freezing of quantum tunneling - the same ...
  • 01:27: ... predicts that certain quantum events - like the electrons moving between atomic energy levels, or the decay of atomic nuclei, can be frozen through the simple ...
  • 07:47: ... observation of the quantum Zeno effect, including various studies of atomic energy levels, as well as the freezing of quantum tunneling - the same ...
  • 01:27: ... predicts that certain quantum events - like the electrons moving between atomic energy levels, or the decay of atomic nuclei, can be frozen through the simple act of ...
  • 07:47: ... observation of the quantum Zeno effect, including various studies of atomic energy levels, as well as the freezing of quantum tunneling - the same phenomenon that ...
  • 01:27: ... like the electrons moving between atomic energy levels, or the decay of atomic nuclei, can be frozen through the simple act of ...

2021-02-17: Gravitational Wave Background Discovered?

  • 00:00: ... wave coming from here towards the earth here causes the largest atomic offsets for pulsars within this structure now a single pulsar isn't ...

2021-01-12: What Happens During a Quantum Jump?

  • 05:19: An atomic electron could then be considered a superposition of multiple vibrational modes.

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

  • 07:34: ... detail, except to say that it might be catalyzed by interactions with atomic nuclei in the ...

2020-09-01: How Do We Know What Stars Are Made Of?

  • 09:29: ... not real” - that it was likely the result of not understanding the atomic theory of hydrogen and helium well ...

2020-08-17: How Stars Destroy Each Other

  • 05:05: ... remnant core now contracts to the point that atomic nuclei are no longer distinct - instead they meld together, protons and ...

2020-04-14: Was the Milky Way a Quasar?

  • 03:56: It goes like this: atomic nuclei - mostly lone protons - can get accelerated to extreme energies, typically in supernovae or other cataclysmic events.

2020-04-07: How We Know The Earth Is Ancient

  • 07:17: ... out the age of chunks of the Earth through radiometric dating. Unstable atomic nuclei decay into lighter nuclei by splitting or by ejecting particles. ...

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

  • 09:56: ... so our atomic measurement device doesn’t “collapse the wavefunction.” It doesn't ...

2020-01-27: Hacking the Nature of Reality

  • 00:24: ... - rather than trying to map the detailed inner workings of the invisible atomic structure - the traditional reductionist approach - he sought a model ...
  • 03:10: But problems returned when we started to peer into the atomic nucleus.
  • 03:40: ... were scattering experiments - particles were shot into atomic nuclei, and the internal structure was probed by the way those or other ...
  • 04:10: ... to understand a scattering experiment - like those used to probe the atomic nucleus - not by modeling all the cogs and wheels of the field theory of ...
  • 05:43: ... in the 40s, but the approach came into its own 20 years later when the atomic nucleus refused to give up its ...
  • 03:40: ... were scattering experiments - particles were shot into atomic nuclei, and the internal structure was probed by the way those or other ...
  • 03:10: But problems returned when we started to peer into the atomic nucleus.
  • 04:10: ... to understand a scattering experiment - like those used to probe the atomic nucleus - not by modeling all the cogs and wheels of the field theory of the ...
  • 05:43: ... in the 40s, but the approach came into its own 20 years later when the atomic nucleus refused to give up its ...
  • 04:10: ... to understand a scattering experiment - like those used to probe the atomic nucleus - not by modeling all the cogs and wheels of the field theory of the ...
  • 05:43: ... in the 40s, but the approach came into its own 20 years later when the atomic nucleus refused to give up its ...
  • 00:24: ... - rather than trying to map the detailed inner workings of the invisible atomic structure - the traditional reductionist approach - he sought a model that ignored ...

2020-01-06: How To Detect a Neutrino

  • 05:26: ♪ ♪ In order for a neutrino to interact with an atomic nucleus ♪ ♪ it needs to pass so close that it's essentially inside the nucleus.

2019-07-15: The Quantum Internet

  • 09:27: ... photon quantum states in a cloud of caesium atoms, a kind of quantum atomic disk drive, or the spin-state of a single electron in a nitrogen atom ...
  • 10:57: ... distributed quantum computers, as well as achieve new levels of atomic clock synchronization and extreme precision in our interferometric ...
  • 09:27: ... photon quantum states in a cloud of caesium atoms, a kind of quantum atomic disk drive, or the spin-state of a single electron in a nitrogen atom ...

2019-07-01: Thorium and the Future of Nuclear Energy

  • 00:00: ... power in the 1950s at least according to Luis Strauss chairman of the Atomic Energy Commission That promise has not yet come to pass but with some ...
  • 02:49: ... to split Resulting in an explosive release of energy. That would be an atomic bomb But if you can regulate the process, make sure that each nucleus ...
  • 00:00: ... power in the 1950s at least according to Luis Strauss chairman of the Atomic Energy Commission That promise has not yet come to pass but with some ...

2019-06-06: The Alchemy of Neutron Star Collisions

  • 00:00: ... words: "We are star stuff", refers to a mind-blowing idea that most atomic nuclei in our bodies were created in the nuclear furnaces and explosive ...
  • 02:47: ... they are composed almost entirely of neutrons a density similar to the atomic nucleus they also have a thin crust of iron densities are so high in ...
  • 00:00: ... words: "We are star stuff", refers to a mind-blowing idea that most atomic nuclei in our bodies were created in the nuclear furnaces and explosive deaths ...
  • 02:47: ... they are composed almost entirely of neutrons a density similar to the atomic nucleus they also have a thin crust of iron densities are so high in fact that ...

2019-05-16: The Cosmic Dark Ages

  • 02:19: ... by two things: the absence of new sources of light and the fog of atomic and molecular hydrogen and helium that filled the ...

2019-05-01: The Real Science of the EHT Black Hole

  • 04:45: It can do this because the telescopes are synchronized with atomic clocks.

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

  • 02:05: ... Regular matter, what we call baryons was in plasma form with the simple atomic nuclei stripped of their electrons in that extreme heat in this plasma ...

2018-12-06: Did Life on Earth Come from Space?

  • 00:37: ... interstellar space is thick with energetic cosmic rays near light speed atomic nuclei as well as x-rays and gamma rays endospores are somewhat ...

2018-11-14: Supersymmetric Particle Found?

  • 03:52: ... are all expected to blast high energy particles like electrons and atomic nuclei into the ...
  • 05:36: We detect neutrinos because very, very rarely one will interact with an atomic nucleus and produce a shower of particles.
  • 03:52: ... are all expected to blast high energy particles like electrons and atomic nuclei into the ...
  • 05:36: We detect neutrinos because very, very rarely one will interact with an atomic nucleus and produce a shower of particles.

2018-07-04: Will A New Neutrino Change The Standard Model?

  • 01:22: ... neutrinos by watching for the rare interaction between a neutrino and an atomic nucleus in some huge volume of matter, an entire glacier in the IceCube ...
  • 13:33: I heard this one guy, he started out memorizing pi to impress chicks, ended up inventing the atomic bomb.
  • 01:22: ... neutrinos by watching for the rare interaction between a neutrino and an atomic nucleus in some huge volume of matter, an entire glacier in the IceCube ...

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

  • 05:41: ... star processes, resulting in a sequence of flashes more regular than an atomic ...
  • 07:05: ... the expansion and contraction of space while the rod resists due to the atomic forces between its ...
  • 05:41: ... star processes, resulting in a sequence of flashes more regular than an atomic clock. ...
  • 07:05: ... the expansion and contraction of space while the rod resists due to the atomic forces between its ...

2018-02-21: The Death of the Sun

  • 09:57: ... a measure of the energy bound into the system, whether the system be an atomic nucleus or a planet, and whatever that type of energy ...

2017-10-25: The Missing Mass Mystery

  • 02:35: But really, baryonic matter refers to atomic matter.

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

  • 04:18: ... parameter was through its effect on the fine grain structure of atomic energy levels, which is where the constant gets its ...
  • 05:08: This splitting is due to the fact that each atomic energy level can host two electrons.
  • 05:31: These same electrons are also orbiting the atomic nucleus, and that motion generates its own magnetic field.
  • 09:26: We're also trying to develop atomic clocks accurate enough to track changes in Alpha in real time.
  • 10:50: ... generations of telescopes, more refined cosmological models, and better atomic clocks will also help scientists shave down those experimental errors ...
  • 09:26: We're also trying to develop atomic clocks accurate enough to track changes in Alpha in real time.
  • 10:50: ... generations of telescopes, more refined cosmological models, and better atomic clocks will also help scientists shave down those experimental errors little by ...
  • 09:26: We're also trying to develop atomic clocks accurate enough to track changes in Alpha in real time.
  • 04:18: ... parameter was through its effect on the fine grain structure of atomic energy levels, which is where the constant gets its ...
  • 05:08: This splitting is due to the fact that each atomic energy level can host two electrons.
  • 04:18: ... parameter was through its effect on the fine grain structure of atomic energy levels, which is where the constant gets its ...
  • 05:31: These same electrons are also orbiting the atomic nucleus, and that motion generates its own magnetic field.

2017-09-20: The Future of Space Telescopes

  • 12:33: During that collapse, the core looks more and more like a neutron star, basically a giant ball of neutrons with the density of an atomic nucleus.

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

  • 02:22: They are mostly composed of neutrons at the density of an atomic nucleus and are held up by a quantum mechanical force called degeneracy pressure.

2017-07-19: The Real Star Wars

  • 04:28: It included much-expanded surface launch anti-ballistic missile ABM networks, but also, get this, an atomic bomb-powered x-ray laser satellite.

2017-06-28: The First Quantum Field Theory

  • 09:40: ... scientists to predict, with incredible precision, the tiny difference in atomic electron energy levels due to electron spins-- spins interacting with ...

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

  • 03:24: In the case of electrons in atoms, it suggests that we should only find one electron per atomic orbital, if we count each orbital as a quantum state.
  • 03:53: ... would allow two separate electrons, one up, one down, to occupy the same atomic energy level, without occupying the same quantum state and therefore ...
  • 03:24: In the case of electrons in atoms, it suggests that we should only find one electron per atomic orbital, if we count each orbital as a quantum state.

2017-05-31: The Fate of the First Stars

  • 08:27: They pumped out ultraviolet radiation, which began the work of energizing, of ionizing, the atomic and molecular hydrogen that filled the universe.

2017-05-03: Are We Living in an Ancestor Simulation? ft. Neil deGrasse Tyson

  • 13:19: Well, these particles are usually single atomic nuclei.

2017-04-19: The Oh My God Particle

  • 00:25: ... October 15th, 1991, a single atomic nucleus travelling at 99.99999999999999999999951% of the speed of light ...
  • 01:21: That single atomic nucleus carried as much kinetic energy as a good sized stone thrown at your head at 50 miles an hour.
  • 01:48: High energy particles, electrons, and small atomic nuclei, as well as gamma rays, are ejected when heavier radioactive elements decay.
  • 00:25: ... October 15th, 1991, a single atomic nucleus travelling at 99.99999999999999999999951% of the speed of light crashed ...
  • 01:21: That single atomic nucleus carried as much kinetic energy as a good sized stone thrown at your head at 50 miles an hour.
  • 00:25: ... October 15th, 1991, a single atomic nucleus travelling at 99.99999999999999999999951% of the speed of light crashed through our ...

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

  • 13:27: However, this doesn't work when there are only a small number of quarks, say in the typical atomic nucleus.

2016-11-16: Strange Stars

  • 05:10: Quark matter made of these quark types would need to be confined by incredible pressures to maintain stability outside the atomic nucleus.
  • 05:58: ... in the universe, more stable even than iron, which is the most stable atomic ...
  • 05:10: Quark matter made of these quark types would need to be confined by incredible pressures to maintain stability outside the atomic nucleus.
  • 05:58: ... in the universe, more stable even than iron, which is the most stable atomic nucleus. ...

2016-09-07: Is There a Fifth Fundamental Force? + Quantum Eraser Answer

  • 00:37: Atomic nuclei have energy levels, just like their electron shells do.
  • 03:11: ... energies produced in the LHC, like the megaelectronvolt transitions of atomic nuclear energy ...
  • 00:37: Atomic nuclei have energy levels, just like their electron shells do.

2016-06-29: Nuclear Physics Challenge

  • 00:37: For example, a particle bound within an atomic nucleus may spontaneously find itself outside the nucleus, where the binding force no longer holds it.
  • 02:27: ... radius relationship, which relates the radius of the nucleus to the atomic mass ...
  • 00:37: For example, a particle bound within an atomic nucleus may spontaneously find itself outside the nucleus, where the binding force no longer holds it.

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

  • 03:09: But these bundles also exist as parts of heavier atomic nuclei.

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

  • 03:18: At this time, the universe was full of plasma, atomic nuclei, and free electrons.

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

  • 02:49: ... force and the strong nuclear force-- that's the force that holds atomic nuclei together-- also become unified into one ...

2016-02-03: Will Mars or Venus Kill You First?

  • 04:43: The steady bombardment by high-speed atomic nuclei smashing through our bodies will certainly damaged cells and DNA.

2016-01-13: When Time Breaks Down

  • 01:36: The most accurate clocks in the world are atomic clocks, which can drift by less than a billionth of a second each day.

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

  • 02:17: ... size of a city, with a mass of at least 1.4 suns and the density of an atomic ...

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

  • 07:14: ... the unthinkably rare collisions between a dark matter particle and an atomic ...

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

  • 01:29: ... Atomic clocks in high-altitude orbit will get ahead of clocks on the ground by ...

2015-07-08: The Leap Second Explained

  • 00:41: ... 1967, we redefined the SI second again based on atomic clocks since they're more stable, but the atomic clock second was ...
  • 01:16: The atomic clock second just inherited this discrepancy.
  • 00:41: ... second again based on atomic clocks since they're more stable, but the atomic clock second was calibrated to agree with the ephemeris ...
  • 01:16: The atomic clock second just inherited this discrepancy.
  • 00:41: ... 1967, we redefined the SI second again based on atomic clocks since they're more stable, but the atomic clock second was calibrated to ...

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

  • 09:40: ... since those discrepancies are measurable with atomic clocks, this has to be taken into account when you calibrate time ...

2015-06-24: The Calendar, Australia & White Christmas

  • 05:17: ... we'll just reckon time in atomic clock seconds or something like the Stargate system on "Star Trek," ...
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