How Vacuum Decay Would Destroy The Universe

PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE↓ More info below ↓Uploaded 20-01-20Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetimeSign up for the mailing list to get episode notifications and hear special announcements!https://tinyurl.com/yx9cusk5Check out the Space Time Merch Storehttps://pbsspacetime.com/The three body problem is famous for being impossible to solve. But actually it's been solved many times, and in ingenious ways. Some of those solutions are incredibly useful, and some are incredibly bizarre.Hosted by Matt O'DowdWritten by Matt O'DowdGraphics by Leonardo Scholzer and Adriano LealPost Production: Yago Ballarini, Max Willians, Pedro OsinskiDirected by: Andrew KornhaberExecutive Producers: Eric Brown and Andrew KornhaberEnd Credits Music by J.R.S. Schattenberg: https://www.youtube.com/channel/UCRl6-nb4iOnsij-vnpAjp0QPhysics - and arguably all of science changed forever in 1687 when Isaac Newton published his Principia. Within it were equations of motion and gravity that transformed our erratic-seeming cosmos into a perfectly tuned machine of clockwork predictability. Given the current positions and velocities of the bodies of the solar system, Newton’s equations could be used in principle be used to calculate their locations at any distant time, future or past. I say “in principle” because the reality isn’t so simple. Despite the beauty of Newton’s equations, they lead to a simple solution for planetary motion in only one case - when two and only two bodies orbit each other sans any other gravitational influence in the universe. Add just one more body and in most cases all motion becomes fundamentally chaotic - there exists no simple solution. This is the three-body problem, and we’ve been trying to solve it for over 300 years.Special Thanks to Our Patreon Supporters:Big Bang Supporters: Alexander TamasDavid BarnholdtDavid NicklasFabrice EapJohn SJuan BenetMorgan HoughQuasar Supporters:Christina OegrenMark HeisingVinnie FalcoHypernovaChuck ZegarDanton SpiveyDonal BotkinEdmund FokschanerHank SJohn HofmannJohn PollockJohn R. SlavikJordan YoungJoseph SalomoneJulian TyackeJustin AshMathewMatthew O'ConnorSyed AnsarTimothy McCullochHypernova Supporters: A GAdrian HatchAdrien MolyneuxAlecZeroAndreas NautschAngela PriggeBradley JenkinsBrandon labonteCraig StonahaDan WarrenDaniel LyonsDavid BethalaDFaulkEric KieblerFrederic SimonGeoffrey ShortGraydon GossGreg SmithJohn FunaiJohn GriffithJohn RobinsonJonathan NesfederJosh ThomasKevin LeeKevin WarneKyle HoferMalte UblMichael ConroyNick VirtueNick WrightPatrick SuttonPaul RoseRandall SylviaRobert IlardiScott GossettSean WarniahaSipke SchoorstraSteve BradshawTatiana VorovchenkoTim StephaniTonyfaceTybie FitzhughYurii Konovaliuk Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

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PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE↓ More info below ↓Uploaded 03-09-19Please Take the PBS Digital Studios Annual Survey Here: https://www.pbsresearch.org/c/r/ST_YTvideoIt's very helpful and you could win a free T-Shirt! Support Space Time on Patreonhttps://www.patreon.com/pbsspacetimeCheck out the new Space Time Merch Store!https://pbsspacetime.com/Earth’s magnetic field protects us from deadly space radiation. What if it were drastically weakened, as a precursor to flipping upside down? I mean, it has before … many, many times.. Hosted by Matt O'DowdWritten by Matt O'DowdGraphics by Leonardo ScholzerDirected by: Andrew KornhaberProduced By: Kornhaber BrownSpecial Thanks to Lathrop Lab at University of Maryland: https://complex.umd.edu/Check Out Lathrop Lab's YouTube Channel to learn more about their 3-meter experiment that models the Earth's core:https://www.youtube.com/channel/UC-nUrQmFR3pFgEVwW0qAURA Spaceship Earth has a literal deflector shield. A geomagnetic field. Lines of magnetic force, forged by currents in the planet’s molten core, erupt from the surface close to the north south geographic poles, connecting to each other to wreath the planet in a dipole field, like a gigantic bar magnet. Magnetic fields exert a force on moving charged particles, causing them to spiral around those force lines. That’s helpful, because Earth is constantly bombarded by very fast moving charged particles, especially coming from the Sun. Our magnetic field deflects the worst of these. Not all planets are so lucky. Mars, with its solid core, has no such shield – and so the red planet’s atmosphere was stripped away by the solar wind billions of years ago.Want Even More Great Space Content? Check out the Exciting Summer of Space Playlist https://www.youtube.com/playlist?list=PLoFRvPlmME6FOQtdDKyOUzKJiTE6KXsK3Big Bang Supporters:Alexander TamasAnton LifshitsDavid NicklasFabrice EapJuan BenetMorgan HoughQuasar Supporters:Mark HeisingMark RosenthalVinnie FalcoHypernova Supporters:Chuck ZegarDanton SpiveyDonal BotkinEdmund FokschanerHank SJohn HofmannJohn R. SlavikJordan YoungJoseph SalomoneMatthewMatthew O'ConnorSyed AnsarGamma Ray Burst Supporters: Adrien HatchAdrian MolyneuxAlexey EromenkoAndreas NautschBradley JenkinsBrandon LabonteCarlo MogaveroDan WarrenDaniel LyonsDavid BehtalaDFaulkDustan JonesGeoffrey ShortJames FlowersJames QuinteroJohn FunaiJohn PollockJonahJonathan NesfederJoseph DillmanJosh ThomasKevin LeeKevin WarneKyle HoferMalte UblMark VasileNathan HitchingsNicholas NachefskiNick VirtuePaul RoseScott GossettSigurd Ruud FrivikTaras VozniukTim JonesTim StephaniYurii Konovaliukسلطان الخليفي Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices

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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 25-04-18It’s been conjectured that the center of the Milky Way is swarming with tens of thousands of black holes. And now we’ve actually seen them.You can further support us on Patreon at https://www.patreon.com/pbsspacetimeGet your own Space Time t­-shirt at http://bit.ly/1QlzoBiTweet at us! @pbsspacetimeFacebook: facebook.com/pbsspacetimeEmail us! pbsspacetime [at] gmail [dot] comComment on Reddit: http://www.reddit.com/r/pbsspacetimeHelp translate our videos!https://www.youtube.com/timedtext_cs_...Previous Episode:Using Stars to See Gravitational Waveshttps://www.youtube.com/watch?v=xnwXyPU_ps0This episode of Space Time Journal Club looks at the paper:A density cusp of quiescent X-ray binaries in the central parsec of the Galaxyby Hailey, Mori, Bauer, Berkowitz, Hong and Hord (2018)https://www.nature.com/articles/nature25029The core of our galaxy is a wild place. The stars are so densely packed that the night sky would be 500 times brighter. A supermassive black hole, 4 million times the mass of our Sun lurks in the center. It flings nearby stars into extreme slingshot orbits. It consumes anything that gets too close is consumed, burping a blast of X-rays. We know these things because we see them from our comfortable vantage point 28,000 light years out in the galactic disk. But there’s one particularly terrible feature of the core of our galaxy that, until now, has only been has only be hypothesized: The central few light years of the Milky Way is thought to contain a vast swarm of smaller black holes that have rained in from the surrounding galaxy.Hosted by Matt O'DowdWritten by Matt O'DowdGraphics by Grayson BlackmonAssistant Editing and Sound Design by Mike Petrow and Linda HuangMade by Kornhaber Brown (www.kornhaberbrown.com)Special thanks to our Patreon Big Bang, Quasar and Hypernova Supporters: Big BangCoolAsCatsDavid NicklasAnton LifshitsJoey RednerFabrice EapQuasarTambe BarsbayMayank M. MehrotaMars YenturMark RosenthalDean FuquaRoman PinchukColeslawPurdieHypernovaEdmund FokschanerMatthew O’ConnorEugene LawsonBarry HatfieldMartha HuntJoseph SalomoneChuck ZegarJordan YoungRatfeastJohn HofmannCraig PetersonThanks to our Patreon Gamma Ray Burst Supporters: James HughesShannan CatalanoFabian OlesenKris FernetJane MeyersJames FlowersGreg AllenTJMadisonDenys IvanovNick VirtueAlexey EromenkoNicholas RoseScott GossettMark VasilePatrick MurraySultan AlkhulaifiAlex SetoMichal-Peanut KarmiErik SteinKevin WarneJJ BagnellJ RejcAvi GoldfingerJohn PettitFlorian StinglmayrBenoit Pagé-GuitardNathan LenizBrandon LabonteDavid CraneGreg WeissBrandon CookDaniel Lyons Learn more about your ad choices. Visit megaphone.fm/adchoices Learn more about your ad choices. Visit megaphone.fm/adchoices