PBS Space Time

PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateSPACE↓ More info below ↓Uploaded 22-06-20Sign Up on Patreon to get access to the Space Time Discord! https://www.patreon.com/pbsspacetimeCheck out the Space Time Merch Storehttps://pbsspacetime.com/Sign up for the mailing list to get episode notifications and hear special announcements!https://mailchi.mp/1a6eb8f2717d/spacetimeBlack holes are about the worst subjects for direct study in the universe. But at this stage, it’s all we can do to convince ourselves of their existence. Actually studying the physics of real black holes is much, much harder. I mean, we could try to make one - but that’s way beyond our current tech level, and also potentially humanity-destroying. Well it turns out we don’t need to make real black holes to at least get started with the lab work. We can instead study analog black holes - and by analog, I don’t mean old fashioned clockwork black holes - I mean analogies. Physical systems that aren’t black holes but that behave in similar ways - and may reveal the real behaviours of real black holes.End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/channel/UCRl6-nb4iOnsij-vnpAjp0QMatt Visser Paperhttps://arxiv.org/abs/gr-qc/9712010Hosted by Matt O'DowdWritten by Daniel Garisto and Matt O'DowdGraphics by Leonardo Scholzer, Yago Ballarini, and Pedro OsinskiDirected by: Andrew KornhaberCamera Operator: Bahaar GholipourExecutive Producers: Eric Brown and Andrew Kornhaber#space #astrophysics #blackholesPrevious Episodes Referenced: Unruh Radiation https://www.youtube.com/watch?v=7cj6oiFDEXcHawking Radiation: https://www.youtube.com/watch?v=qPKj0YnKANw&vl=enHow Black Hole Spin Space Time https://www.youtube.com/watch?v=UjgGdGzDFiM&t=2sWhat’s On the Other Side of a Black Hole: https://www.youtube.com/watch?v=T4oYvSH6jJ8Special Thanks to All our Big Bang Sponsors! Big Bang SupportersAlexander TamasCaed AldwychDavid NicklasFabrice EapJuan BenetJustin LloydMorgan HoughRadu NegulescuQuasar SupportersCarson KahnChristina OegrenMark HeisingVinnie FalcoHypernova SupportersChuck ZegarDanton SpiveyDonal BotkinEdmund FokschanerHank SJohn HofmannJohn PollockJohn R. SlavikJordan YoungJoseph SalomoneJulian TyackeMathewMatthew O'ConnorSyed AnsarTimothy McCullochWilliam BryanGamma Ray Burst SupportersA GAdrian HatchAlecZeroAndreas NautschAndrew RichmondBleys GoodsonBradley JenkinsBrandon labonteBrandon LattinBrian BlanchardBruce BCass CostelloCraig StonahaDan WarrenDaniel LyonsDarryl J LyleDavid BethalaDavid HughesDawn M FinkDevon RosenthalDFaulkEric KieblerFrederic SimonGeoffrey ShortGraydon GossGreg SmithIsaac SuttellIsmael MonteceljechamtJohn FunaiJohn GriffithJohn RobinsonJosh ThomasJustin WatersKevin LeeKevin WarneKyle HoferLuaanM DMalte UblMark Daniel CohenMichael ConroyMikhail KlakotskiyMirik GogriNick VirtueNick WrightNickolas Andrew FreemanOliver FlanaganPatrick SuttonPaul RoseProtius ProtiusRainwalker WinterpainterRichard DeightonRobert IlardiRobert WalterScott GossettSean WarniahaShane CalimlimSimon OliphantTatiana VorovchenkoTim StephaniTonyfaceTybie FitzhughYannick WeynsYurii Konovaliuk 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 18-07-18Entropy and the second law of thermodynamics has been credited with defining the arrow of time.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:Quantum Invariance and The Origin of The Standard Modelhttps://www.youtube.com/watch?v=V5kgruUjVBsEntropy is surely one of the most intriguing and misunderstood concepts in all of physics. The entropy of the universe must always increase – so says the second law of thermodynamics. It’s a law that seems emergent from deeper laws – it’s statistical in nature – and yet may ultimately be more fundamental and unavoidable than any other law of physics. Hosted by Matt O'DowdWritten Matt O'DowdGraphics by Grayson BlackmonAssistant Editing and Sound Design by Mike PetrowMade 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 PinchukColeslawPurdieVinnie FalcoHypernovaDonal BotkinEdmund FokschanerMatthew O’ConnorEugene LawsonBarry HatfieldMartha HuntJoseph SalomoneChuck ZegarCraig PetersonJordan YoungRatfeastJohn HofmannThanks to our Patreon Gamma Ray Burst Supporters: James HughesFabian OlesenKris FernetJane MeyersJames FlowersGreg AllenDenys IvanovNick VirtueAlexey EromenkoNicholas RoseScott GossettMark VasilePatrick Murrayسلطان الخليفيAlex SetoMichal-Peanut KarmiErik SteinKevin WarneJJ BagnellAvi GoldfingerJohn PettitFlorian StinglmayrBenoit Pagé-GuitardNathan LenizBrandon LabonteDavid CraneGreg WeissShannan CatalanoBrandon CookMalte Ubl Learn more about your ad choices. Visit megaphone.fm/adchoices
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Thank you to Brilliant for Supporting PBS. To learn more go to https://brilliant.org/SpaceTime/

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There’s an absolute limit to our access to the universe beyond our own galaxy. There’s a limit to what we can ever hope to explore or send signals to, and a very different limit to what we can ever hope to witness. Today we’re going to explore the latter. We’re going to figure out the absolute limit of our future view of the universe, and of the universe’s ability to influence us. Next time we’ll turn it around and ask: how much of the external universe can WE potentially influence, and even explore?

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Hosted by Matt O'Dowd
Written by Matt O'Dowd & Euan McLean
Post Production by Leonardo Scholzer, Yago Ballarini, & Stephanie Faria
Directed by Andrew Kornhaber
Associate Producer: Bahar Gholipour
Executive Producers: Eric Brown & Andrew Kornhaber
Executive in Charge for PBS: Maribel Lopez
Director of Programming for PBS: Gabrielle Ewing
Assistant Director of Programming for PBS: John Campbell

Spacetime is produced by Kornhaber Brown for PBS Digital Studios.
This program is produced by Kornhaber Brown, which is solely responsible for its content.
© 2023 PBS. All rights reserved.

End Credits Music by J.R.S. Schattenberg: https://www.youtube.com/user/MultiDroideka

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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACEUploaded 21-03-18What do the first stars in the universe, dark matter, and superior siege engines have in common? 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/pbsspacetimeTrebuchet Challenge Winners:Vineet GalaValerie SinclairAlex FunicielloDavid ShearnGwyn PaskeBruce and Angela TremainHelp translate our videos!https://www.youtube.com/timedtext_cs_panel?tab=2&c=UC7_gcs09iThXybpVgjHZ_7gPrevious Episode:Hawking Radiationhttps://www.youtube.com/watch?v=qPKj0YnKANwSometimes space news sneaks by without getting much attention. Not everything wows like gravitational waves or spacefaring sportscars. That’s the case with the recent discovery of earliest stars in the universe. In a Nature paper published a few weeks ago, Judd Bowman and collaborators report a signal from the very first stars to form in our universe. The same result also hints at brand new physics that may help explain the nature of dark matter. This result flew under the radar in part because it’s a subtle and clever result that requires a bit of interpretation. Today we’re doing a Space Time Journal Club to explain this discovery. We’ll follow that with the solution to our recent trebuchet challenge question.Written and Hosted by Matt O'DowdProduced by Rusty WardGraphics 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 NicklasFaisal SaudAnton LifshitsJoey RednerQuasarTambe BarsbayMayank M. MehrotaMars YenturMark RosenthalDean FuquaRoman PinchukFrank SeciliaColeslawPurdieHypernovaEdmund FokschanerMatthew O’ConnorEugene LawsonMartha HuntJoseph SalomoneChuck ZegarJordan YoungRatfeastJohn HofmannBarry HatfieldCraig PetersonKevin CostelloThanks to our Patreon Gamma Ray Burst Supporters: James HughesFabian OlesenKris FernetJane MeyersJames FlowersGreg AllenTJMadisonDenys IvanovNick VirtueAlexey EromenkoNicholas RoseScott GossettMark VasilePatrick MurraySultan AlkhulaifiAlex SotoMichal-Peanut KarmiErik SteinDaniel LyonsKevin WarneJJ BagnellJ RejcAvi GoldfingerJohn PettitFlorian StinglmayrBenoit Pagé-GuitardNathan LenizBrandon LabonteDavid CraneGreg Weiss 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 16-05-18To learn more about Brilliant, you can go to https://brilliant.org/spacetime/ Conservation laws are among the most important tools in physics. They feel as fundamental as you can get. And yet they’re wrong - or at least they’re only right sometimes. These laws are consequences of a much deeper, more fundamental principle: Noether’s theorem.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:How Gaia Changed Astronomy Foreverhttps://www.youtube.com/watch?v=Jdy09...Conservation laws are the cheat codes of physics. They make it possible to solve physics problems that would otherwise be painfully difficult, or even impossible. More than cheat codes – conservation laws are close to the source code – they emerge from profound and simple truths about the basis of reality. They emerge from the fundamental symmetries of nature. The connection between conservation laws and symmetry is encapsulated in Noether’s theorem. But before we dive into this extremely elegant idea, let’s talk about the seeming paradox that inspired it, and the genius who discovered it.Written and hosted 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 ZegarCraig PetersonJordan YoungRatfeastJohn HofmannThanks to our Patreon Gamma Ray Burst Supporters: James HughesFabian OlesenKris FernetJane MeyersJames FlowersGreg AllenDenys IvanovNick VirtueAlexey EromenkoNicholas RoseScott GossettMark VasilePatrick MurraySultan AlkhulaifiAlex SetoMichal-Peanut KarmiErik SteinKevin WarneJJ BagnellAvi GoldfingerJohn PettitFlorian StinglmayrBenoit Pagé-GuitardNathan LenizBrandon LabonteDavid CraneGreg WeissShannan CatalanoBrandon Cook Learn more about your ad choices. Visit megaphone.fm/adchoices
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