PBS Space Time (2015)
Space Time explores the outer reaches of space, the craziness of astrophysics, the possibilities of sci-fi, and anything else you can think of beyond Planet Earth.
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1. How To Simulate The Universe With DFT2022-01-12 · 21mIf you used every particle in the observable universe to do a full quantum simulation, how big would that simulation be? At best a large molecule. That’s how insanely information d
- 2 2. How To Build The Universe in a Computer2022-01-19 · 14mWe routinely simulate the universe on all of its scales, from planets to large fractions of the cosmos. Today we’re going to see how it’s possible to build a universe in a computer
- 3 3. How Does Gravity Escape A Black Hole?2022-01-27 · 19mFact: in a black hole, all of the mass is concentrated at the singularity at the very center. Fact: every black hole singularity is surrounded by an event horizon. Nothing can esca
- 4 4. Is The Wave Function The Building Block of Reality?2022-02-16 · 21mObjective Collapse Theories offer a explanation of quantum mechanics that is at once brand new and based in classical mechanics. In the world of quantum mechanics, it’s no big deal
- 5 5. Are Cosmic Strings Cracks in the Universe?2022-02-23 · 16mReality has cracks in it. Universe-spanning filaments of ancient Big Bang energy, formed from topological defects in the quantum fields, aka cosmic strings. They have subatomic thi
- 6 6. Is the Proxima System Our Best Hope For Another Earth?2022-03-08 · 22mAt just four light years away, Proxima Centauri is our closest solar neighbor. The recent discovery of the new exoplanet Proxima D, has reopened the discussion of whether the proxi
- 7 7. What If Charge is NOT Fundamental?2022-03-16 · 16mIf you've studied any physics you know that like charges repel and opposite charges attract. But why? It's as though this thing - electric charge - is as fundamental a property of
- 8 8. Where Is The Center of The Universe?2022-03-23 · 20mToday we’re going to ask a simple-seeming question that will lead to so pretty wacky places. The question is this: If the universe has a center, where is it?
- 9 9. Could The Universe Be Inside A Black Hole?2022-03-30 · 14mWhat is inside a black hole? Inevitable crushing doom? Gateways to other universes? Weird, multidimensional libraries? If you’ve ever wanted to know then you might be in luck - Som
- 10 10. Does the Universe Create Itself?2022-04-20 · 19mImagine you’re leading a game of 20 questions and you forget the thing you chose half way through. You have to keep answering yesses and nos and hope that you think of something th
- 11 11. How the Higgs Mechanism Give Things Mass2022-04-27 · 19mFermilab physicists really care about the mass of the W boson. They spent nearly a decade recording collisions in the Tevatron collider and another decade analysing the data. This
- 12 12. Space DOES NOT Expand Everywhere2022-05-04 · 18mSpace is big, and it’s getting bigger. But where does all that new space actually come from? And is it popping into existence all around you right now? Is that why the remote contr
- 13 13. What If the Galactic Habitable Zone LIMITS Intelligent Life?2022-05-18 · 16mOur solar system is a tiny bubble of habitability suspended in a vast universe that mostly wants to kill us. In fact, a good fraction of our own galaxy turns out to be utterly unin
- 14 14. The Evolution of the Modern Milky Way Galaxy2022-05-25 · 21mWhen we scan the heavens with giant telescopes we see galactic cannibalism everywhere. We see moments that appear frozen on the human timescale, but are really snapshots of the inc
- 15 15. What If Physics IS NOT Describing Reality?2022-06-01 · 19mNeils Bohr said, “It is wrong to think that the task of physics is to find out how Nature is. Physics concerns what we can say about Nature.” Well it turns out that if we pay atten
- 16 16. Have We SOLVED The Black Hole Information Paradox with Wormholes?2022-06-15 · 15mBlack holes are very real, but are also a theoretical nightmare. It turns out that in order to make sense of their paradoxical nature, every black hole has to be thought of as a mu
- 17 17. Is Interstellar Travel Impossible?2022-06-22 · 21mSpace is pretty deadly. But is it so deadly that we’re effectively imprisoned in our solar system forever? Many have said so, but a few have actually figured it out.
- 18 18. Could We Decode Alien Physics?2022-06-30 · 20mHow hard can it really be to decode alien physics and engineering? It’s gotta map to our own physics - I mean, we live in the same universe. We start by noticing that the alien tec
- 19 19. What If We Live in a Superdeterministic Universe?2022-07-20 · 19mToday we’re going to try to save reality - or at least realism. However this rescue effort has a price; one that you may not be willing to pay. Your very soul, or at least your fre
- 20 20. How Many States Of Matter Are There?2022-07-27 · 15mLet’s talk about states of matter. You know your states of matter don’t you? We have solids, liquids and gasses, and plasmas, quark-gluon plasmas, nuclear matter, bose-einstein con
- 21 21. What Happens Inside a Proton?2022-08-03 · 21mIf we ever want to simulate a universe, we should probably learn to simulate even a single atomic nucleus. But it’s taken some of the most incredible ingenuity of the past half-cen
- 22 22. What If Dark Energy is a New Quantum Field?2022-08-17 · 17mWhat is Quintessence? Well we know that something is up with the way the universe is expanding - there’s some kind of anti-gravitational effect that’s causing the expansion to acce
- 23 23. What Makes The Strong Force Strong?2022-08-24 · 22mOriginal Title: Why Isn’t The Nucleus Ripped Apart? Quantum mechanics gets weirder as you go to smaller sizes and higher energies. It’s strange enough for atoms, but positively bi
- 24 24. Could the Higgs Boson Lead Us to Dark Matter?2022-09-14 · 15mThe discovery of the Higgs boson ten years ago in the Large Hadron Collider was the culmination of decades of work and the collaboration of 1000s of brilliant and passionate people
- 25 25. Science of the James Webb Telescope Explained!2022-09-21 · 19mYou’ve probably heard about the James Webb Space Telescope and seen some cool pictures. But why should astronomers have all the fun? How do we get to use this new toy ourselves?
- 26 26. Why Is 1/137 One of the Greatest Unsolved Problems In Physics?2022-09-28 · 16mThe Fine Structure Constant is one the strangest numbers in all of physics. It’s the job of physicists to worry about numbers, but there’s one number that physicists have stressed
- 27 27. The REAL Possibility of Mapping Alien Planets!2022-10-12 · 22mI’m going to tell you about the craziest proposal for an astrophysics mission that has a good chance of actually happening. A train of spacecraft sailing the sun’s light to a magic
- 28 28. The Equation That Explains (Nearly) Everything!2022-10-19 · 17m
- 29 29. Why Did Quantum Entanglement Win the Nobel Prize in Physics?2022-10-26 · 21mThe Nobel prize in physics is typically awarded to scientists who make sense of nature; those whose discoveries render the universe more comprehensible. But the 2022 Nobel has been
- 30 30. What If Humanity Is Among The First Spacefaring Civilizations?2022-11-09 · 21mHalf of the universe is filled with expansionist alien civilizations, and it’s only a matter of time before they’ll reach us. OK, that sounded a little sensationalist. But it’s als
- 31 31. Are there Undiscovered Elements Beyond The Periodic Table?2022-11-16 · 21mAdamantium, bolognium, dilithium. Element Zero, Kryptonite. Mythril, Netherite, Orichalcum, Unobtanium. We love the idea of fictional elements with miraculous properties that scien
- 32 32. How To See Black Holes By Catching Neutrinos2022-11-23 · 19mNeutrinos are one of the most bizarre of known particles. Black holes are probably the most bizarre of astrophysical objects. Makes sense we should use one to study the other, no?
- 33 33. How Are Quasiparticles Different From Particles?2022-12-08 · 17mThe device you’re watching this video on is best understood by thinking about positive and negative charges moving around a circuit of diodes and transistors. But the only elementa
- 34 34. How Can Matter Be BOTH Liquid AND Gas?2022-12-14 · 22mSupercritical Fluids are one the strangest states of matter and yet they are found everywhere from Decaf Coffee, to dry cleaning, to the atmosphere of Jupiter. When we think of an
Cast
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