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2022-11-16: Are there Undiscovered Elements Beyond The Periodic Table?
- 11:31: When we combine our experimental data with our simulations we can make graphs like this one.
- 13:23: And our computer simulations agree.
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2022-10-12: The REAL Possibility of Mapping Alien Planets!
- 04:36: ... lens images pretty messy. For example, here are some simulations of distant galaxies that have been lensed by a second ...
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2022-08-03: What Happens Inside a Proton?
- 02:06: ... that people are exceptionally clever, and came up with lattice simulations. ...
- 13:36: ... the exotic properties of quark-gluon plasma. These simulations were also an essential part of the prediction side of the new muon ...
- 14:32: ... power grows, one day we’ll likely be able to build detailed simulations of entire collections of hadrons like the nucleus of a ...
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2022-01-27: How Does Gravity Escape A Black Hole?
- 12:29: ... friends at Center for Computational Astrophysics to run a few Universe simulations and track the evolution of the entity known as Alex ...
- 12:41: In one of those simulations you live 3000 years and become emperor of space, and in another you star in Interstellar instead of Matthew McConaughey.
- 12:50: But in all of the simulations you are incredibly generous, interesting, and much loved by all the other simulated entities.
- 13:06: ... theory, and then went from the tiny to the enormous, exploring how we do simulations of everything from the sizes of planets to the size of the ...
- 14:47: And speaking of corrections, for our episode on astrophysical simulations, Mercurius314 spotted a serious blunder.
- 15:39: ... by the simulations we showed of the inevitable collision of the Milky Way with the Andomeda ...
- 17:47: OR the simulations might run in a loop and the top layer is simulated by the bottom.
- 14:47: And speaking of corrections, for our episode on astrophysical simulations, Mercurius314 spotted a serious blunder.
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2022-01-19: How To Build The Universe in a Computer
- 00:59: And simulations of galaxy collisions are just the beginning.
- 02:37: ... so the two galaxies collided, just as with our modern supercomputer simulations, he witnessed the destruction of the disks, the throwing-off of tidal ...
- 04:10: The predictions of these N-body simulations can be as accurate as you like, as long as you make the time steps small enough.
- 04:37: But if we want realistic simulations of say, a galaxy with its billions of stars, we need to do a bit better.
- 04:44: ... missions - but actually, it’s improved nowhere near enough to do N-body simulations of entire galaxies using the method that I ...
- 05:45: To do these simulations, astrophysicists have come up with some ingenious tricks.
- 08:17: Now we call these hydrodynamic simulations - they simulate the flow of gas using the equations of fluid dynamics.
- 09:05: ... practice, modern simulations often use an amalgam of these methods - for example SPH for large scale ...
- 09:17: Astrophysicists often inject all sorts of other physics into their simulations.
- 09:43: ... on modern computing clusters, we can produce some pretty insane simulations. ...
- 11:08: None of these simulations contain the full information of an actual universe - or even a tiny part of it.
- 11:40: But for now let’s just be proud of the science that we can get from modern simulations.
- 11:51: ... the fidelity and size of our simulations will only get better as computing power continues its exponential ...
- 08:17: Now we call these hydrodynamic simulations - they simulate the flow of gas using the equations of fluid dynamics.
- 05:45: To do these simulations, astrophysicists have come up with some ingenious tricks.
- 10:14: And then we have cosmological simulations which create entire virtual universes, from the moment the first atoms formed to the modern day.
- 10:39: ... the current largest cosmological simulations is AbacusSummit, which just last year simulated 70 trillion particles on ...
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2022-01-12: How To Simulate The Universe With DFT
- 06:18: In fact astrophysicists do huge galaxy simulations of millions of particles without doing millions-of-dimension calculations.
- 08:26: ... for more than a few particles, researchers still manage to do quantum simulations of some extremely complex ...
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2021-12-20: What Happens If A Black Hole Hits Earth?
- 17:55: ... this might be the most testable prediction of string theory. There are simulations that suggest that the gravitational waves created when fuzzball merge ...
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2021-12-10: 2021 End of Year AMA!
- 00:02: ... too closely um but the the first thing to note is that these were simulations okay this experiment hasn't been actually conducted okay so in their ...
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2020-07-20: The Boundary Between Black Holes & Neutron Stars
- 10:28: Based on our calculations and simulations of how stars die, that minimum black hole mass of 5 Suns seems about right.
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2020-01-20: Solving the Three Body Problem
- 06:20: ... modern computers, N-body simulations can accurately predict the motion of the planets into the distant future ...
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2019-12-09: The Doomsday Argument
- 10:56: For example, you could be one of countless simulations of yourself in some far-future experiment to recreate the past - an ancestor simulation.
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2019-09-03: Is Earth's Magnetic Field Reversing?
- 10:18: ... simulations show that the dynamo effect should indeed produce a large-scale dipole ...
- 10:29: For those who don’t trust computer simulations – how about building our own giant spinning ball of molten metal?
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2019-06-17: How Black Holes Kill Galaxies
- 02:54: ... Energy we expect 'Bottom up Galaxy formation' this is what we see in our simulations of the Universe and also mostly agrees with what we see when we look out ...
- 05:24: ... of gas flowed into those clusters from the outside Universe In our simulations of the Universe clustered ellipticals end up much bigger and bluer Due ...
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2019-06-06: The Alchemy of Neutron Star Collisions
- 02:47: ... in the nebula that our solar system formed from the researchers then did simulations to figure out how long ago and how far away the neutron star merger that ...
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2019-01-24: The Crisis in Cosmology
- 14:32: And yeah, those measures tell us that dark matter has positive mass I'd need to do the simulations, but I have a feeling...
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2019-01-09: Are Dark Matter And Dark Energy The Same?
- 06:32: Those simulations showed that galaxies do indeed spin more quickly when surrounded by negative mass particles.
- 12:41: Those galaxy rotation simulations are fascinating.
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2018-03-28: The Andromeda-Milky Way Collision
- 05:06: They used simulations of the gravitational interactions of millions of particles representing groups of stars and dark matter.
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2018-01-31: Kronos: Devourer Of Worlds
- 07:02: Well, computer simulations of planet formation do show that planets can fall into their home stars.
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2018-01-24: The End of the Habitable Zone
- 10:29: In no time at all you'll be coding gravity simulations in Python and calculating the radiation emitted by black holes.
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2018-01-17: Horizon Radiation
- 13:26: Now these are from asteroseismology simulations made by Manuel Perez de Lima Lopez.
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2018-01-10: What Do Stars Sound Like?
- 09:53: In no time at all, you will be coding gravity simulations in Python and calculating the radiation emitted by black holes.
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2017-12-13: The Origin of 'Oumuamua, Our First Interstellar Visitor
- 04:57: PZ 17 performed computer simulations to find the frequency of such kicks sending objects close to the earth at such high speeds.
- 05:25: PZ 17 performed more computer simulations to rewind the motion of both Oumuamua and the 3,700 stars within 100 light years of the sun.
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2017-10-25: The Missing Mass Mystery
- 05:20: Supercomputer simulations reveal the shape of this large-scale structure that should result from this gravitational collapse.
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2017-06-07: Supervoids vs Colliding Universes!
- 03:18: Simulations show that you should get a spot that size in the CMB in around 1 in 50 universes.
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2017-05-03: Are We Living in an Ancestor Simulation? ft. Neil deGrasse Tyson
- 00:06: ... more lifelike, it's becoming clear that at some point, perhaps soon, our simulations will be indistinguishable from ...
- 02:03: So the idea that if you need to produce one universe capable of producing universe simulations.
- 02:09: ... if that universe produces billions of universe simulations, then any universe that you happen to find yourself in-- is more likely ...
- 04:13: I'm talking about so-called ancestor simulations, an idea proposed by Oxford University's Nick Bostrom.
- 04:57: ... science-- he proposes that an advanced civilization may want to run simulations of its own history to study the behavior of the types of minds that ...
- 05:08: He calls these ancestor simulations.
- 07:33: ... ancestor simulations are something that even some civilizations end up creating-- so if they ...
- 08:19: But both ancestor simulations and Boltzmann brains require us to invoke something like the Copernican principle.
- 09:28: ... all civilizations die out before being able to make vast scale ancestor simulations, or essentially no super advanced civilizations choose to make ...
- 10:09: ... in the case of ancestor simulations, upon deciding that we are simulated, we acknowledge that there is no ...
- 10:34: These simulations can only cover a tiny fraction of the universe.
- 11:48: Highly specific scenarios like ancestor simulations or Boltzmann brains generate impossibly large numbers of minds that are identical to our own.
- 12:54: As special thanks, we wanted to assure you two, in particular, that you are not simulations.
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2017-01-11: The EM Drive: Fact or Fantasy?
- 08:05: ... two separate papers, Harold White performs computer simulations, which he argues demonstrates that such a medium can reproduce certain ...
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2016-07-20: The Future of Gravitational Waves
- 03:05: Two, exhaustive computer simulations test how often this signal processing tech gets tricked into falsely reporting a detection.
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2016-07-06: Juno to Reveal Jupiter's Violent Past
- 04:29: Astrophysicists have run many computer simulations to find formation scenarios that lead to the configuration of planets that we see today.
- 06:03: Well, computer simulations show that something like this may be expected given the right starting position for Jupiter.
- 06:15: ... simulations predict that a protoplanetary disk capable of forming Venus and Earth ...
- 09:45: Answer that, and we can nail down these simulations to truly understand our planet's origin.
- 06:15: ... simulations predict that a protoplanetary disk capable of forming Venus and Earth should ...
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2016-06-22: Planck's Constant and The Origin of Quantum Mechanics
- 13:34: ... an enormous range of possible lens mass distributions with computer simulations. ...
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2016-06-15: The Strange Universe of Gravitational Lensing
- 09:03: But real lensing simulations show us what black holes should look like up close.
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2016-02-24: Why the Big Bang Definitely Happened
- 01:15: ... observations to particle collider experiments to supercomputer simulations. ...
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2016-02-17: Planet X Discovered?? + Challenge Winners!
- 01:31: ... it was Brown and Batygin who first ran the exhaustive computer simulations and found a single compelling solution, a very, very distant giant ...
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2015-11-18: 5 Ways to Stop a Killer Asteroid
- 07:27: ... is, if you believe the supercomputer simulations of HAIV team, a one megaton H-bomb should break up a 500 meter asteroid ...
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2015-03-11: What Will Destroy Planet Earth?
- 03:00: ... linked in the description, some French physicists ran 2,500 distinct simulations of the solar system's evolution over the next few billion ...
- 04:40: But the best recent simulations show that Earth will end up just inside the sun and fry.
- 04:45: Now, as always, it's prudent to see whether that answer holds up under future simulations.
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