The Unreasonable Efficiency of Black Holes

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  • čas přidán 19. 05. 2024
  • Thanks to brilliant.org/minutephysics for sponsoring this video! Check out their black hole course at brilliant.org/minutephysicsbla...
    Support MinutePhysics on Patreon! / minutephysics
    Link to Patreon Supporters: www.minutephysics.com/supporters/
    This video is about how efficient various reactions are at converting mass to energy (as we know from the Einstein mass-energy equivalence of E=mc^2). Antimatter is very efficient but it is not naturally-occurring. Chemical reactions like fire or explosions are very inefficient. Nuclear fission and nuclear fusion are better, but not amazing on an absolute scale. Non-rotating black holes (Schwarzschild) and rotating (Kerr) are by far the most efficient, due to their accretion disks and very small radius of their innermost stable circular orbits.
    REFERENCES:
    Periodic Videos Hydrogen Explosion in slow motion: • Hydrogen Explosions (s...
    CIA World Factbook Norway Energy Consumption: web.archive.org/web/201201280...
    Binding Energy: en.wikipedia.org/wiki/Binding...
    Hydrogen molecular bonding: ocw.mit.edu/courses/chemistry...
    Gibbs free energy of water formation: en.wikipedia.org/wiki/Standar...
    Party Balloon Size Chart: broadwaypartyrental.com/wp-co...
    Mass Excess en.wikipedia.org/wiki/Mass_ex...
    Table of Mass Excesses: www.nndc.bnl.gov/masses/mass.m...
    Deuterium-Tritium Hydrogen Fusion Energy Released: www.wolframalpha.com/input/?i=...)
    Hydrogen to Helium Fusion chain efficiency: www.wolframalpha.com/input/?i=...)
    Uranium-235 fission efficiency: www.wolframalpha.com/input/?i=...)
    Black Hole Accretion rates: www-astro.physics.ox.ac.uk/~ga...
    MinutePhysics is on twitter - @minutephysics
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    And Google+ (does anyone use this any more?) - bit.ly/qzEwc6
    Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!
    Created by Henry Reich
  • Věda a technologie

Komentáře • 9K

  • @undead890
    @undead890 Před 4 lety +5967

    New unit of energy:
    Norway Cat Years.

    • @blarg2429
      @blarg2429 Před 4 lety +258

      Annual Norwegian Cats (ANC).

    • @andrewhalvorsen6208
      @andrewhalvorsen6208 Před 4 lety +159

      Cats per Norway

    • @Helperbot-2000
      @Helperbot-2000 Před 4 lety +86

      Im norwegian, and can confirm this is now our standard measurement of energy

    • @n1k32h
      @n1k32h Před 4 lety +28

      undead890
      Pussy IS powerful

    • @ADRENERGlC
      @ADRENERGlC Před 4 lety +11

      Let's make it official! Someone needs to start a petition to add the new NCY measurment

  • @freeonreal
    @freeonreal Před 5 lety +7922

    ❌ Joules
    ❌ Watts
    ✔️ Cats

    • @gushhygang
      @gushhygang Před 5 lety +18

      @@GottfriedLeibnizYT me likey

    • @bxdanny
      @bxdanny Před 5 lety +8

      @Gottfried Leibniz Some things you really shouldn't make jokes about.

    • @GottfriedLeibnizYT
      @GottfriedLeibnizYT Před 5 lety +11

      @Dan Schwartz
      And why is that?

    • @zenthora4910
      @zenthora4910 Před 4 lety +27

      @@bxdanny I mean, come on, it was hilarious!
      Oh and for the reincarnation thing, it simply makes no sense, but I guess that's my opinion

    • @evilzombies192
      @evilzombies192 Před 4 lety +30

      Dan Schwartz
      “I have weird unexplainable memories, therefore *Reincarnation*!”

  • @chribu_
    @chribu_ Před 3 lety +4810

    "You'd only need to throw 17 cats into a black hole to power norway for a year" is now officially my new favorite sentence on the internet

  • @tacticallemon7518
    @tacticallemon7518 Před 3 lety +1527

    Parents: what are you watching
    Me: A video about how many cats you’d have to throw into a black hole to power Norway for a year

    • @rahuliyer_2290
      @rahuliyer_2290 Před 3 lety +60

      *Your parents would be proud*

    • @askani21
      @askani21 Před rokem +23

      Parents: "What are you watching?"
      Me: "Huh... Huh... ...porn. Yep, porn."

    • @I_killed_that_beard_guy
      @I_killed_that_beard_guy Před rokem +5

      Parents: ok you will now live in basement

    • @EdKolis
      @EdKolis Před rokem

      Umm... A video adaptation of The Ones Who Walk Away From Omelas, starring a cat.
      Sounds interesting! Can I join you?
      Umm...

  • @ormirian7364
    @ormirian7364 Před 5 lety +6567

    I can’t possibly scroll through 6k comments to see if this has been said already, but just in case: Anticatter

  • @halvis82
    @halvis82 Před 4 lety +9943

    As a Norwegian, I can confirm: Norway is powered by cats

    • @xander8323
      @xander8323 Před 4 lety +345

      We dont even need any outside help, we just breed cats and throw them into big dark things billions of kilometers away

    • @dry5778
      @dry5778 Před 4 lety +73

      Since I still believe that Norway is the global equivalent to Bielefeld in Germany or Wyoming in the US. So I gladly believe that whatever The Illuminati consider a normal power source for this “totally real” country could very well be cats

    • @marcelsmiley858
      @marcelsmiley858 Před 4 lety +11

      Dolan pls

    • @undyingUmbrage
      @undyingUmbrage Před 4 lety +7

      @aDBo'Ch 1 what are you talking about

    • @francisdimaano2350
      @francisdimaano2350 Před 4 lety +6

      @@undyingUmbrage weirdo stuff

  • @maheenmashrur2574
    @maheenmashrur2574 Před 3 lety +785

    "The best stuffs of physics comes from doing something to a cat."
    - Erwin Schrödinger

  • @AlexandarHullRichter
    @AlexandarHullRichter Před 2 lety +322

    I never seriously considered it before because it's totally made up, but the idea of Star Trek Romulans using an artificial black hole as a power source on board their spaceships makes a lot of sense after your explanation. Thanks!

    • @Mynamewashere
      @Mynamewashere Před rokem +11

      It's not made up. It's real physics.

    • @gamerxdking4369
      @gamerxdking4369 Před rokem

      @@Mynamewashere star trek is made up....

    • @mightycannon1512
      @mightycannon1512 Před rokem +1

      Wait how do they stop the hawking radiation

    • @AlexandarHullRichter
      @AlexandarHullRichter Před rokem

      @@Mynamewashere A Starship using an artificial black hole as a power source is completely made up.

    • @AlexandarHullRichter
      @AlexandarHullRichter Před rokem +20

      @@mightycannon1512 maybe they also use that by converting it into power.

  • @randomjin9392
    @randomjin9392 Před 4 lety +3528

    So, in the E = mc² the "c" clearly stands for "cat". And maybe "m" for "meow".

    • @esajpsasipes2822
      @esajpsasipes2822 Před 4 lety +14

      m is mass

    • @jyotibasu408
      @jyotibasu408 Před 4 lety +284

      R/woosh

    • @matthewjones7366
      @matthewjones7366 Před 4 lety +31

      C is universal constant. It just so happens to be the speed of light.

    • @matthewjones7366
      @matthewjones7366 Před 4 lety +14

      @O 99 Correct (that we're aware of, anyway). There are multiple universal constants, though. C, or the universal speed limit, is just the constant that is called for in this equation. We can change the constant. That just changes apples to oranges, so to speak. 😅

    • @gamingman2720
      @gamingman2720 Před 4 lety +6

      studio Já Games woosh

  • @EugeneKhutoryansky
    @EugeneKhutoryansky Před 6 lety +1737

    Why do physicists enjoy thinking about cruelty to cats? And yes, Schrodinger was one sick puppy.

    • @jmchez
      @jmchez Před 6 lety +106

      Hey, at least Schrodinger proposed putting just a vial of poison in his box to put the cat in a superposition of dead and alive. Einstein suggested a stick of dynamite. He then asked whether you really needed to open the box to learn whether the cat was alive or dead.

    • @danibanani15
      @danibanani15 Před 6 lety +4

      ikr

    • @Nothing2150
      @Nothing2150 Před 6 lety +14

      Physics Videos by Eugene Khutoryansky and dont forget about their keeness on making cows spherical

    • @Silverwind87
      @Silverwind87 Před 6 lety +5

      ONE SICK PUPPY

    • @douglasphillips5870
      @douglasphillips5870 Před 6 lety +22

      It's like you can't swing a cat around without hitting some physicist who wants to hurt a cat. So, everyone wins, except the cat.

  • @JK-qv5wm
    @JK-qv5wm Před rokem +29

    So 42 is indeed the ultimate answer of the universe after all.

  • @marsy_
    @marsy_ Před 3 lety +277

    "You only need to throw 17 cats into a black hole to power Norway for a year!"
    *-MinutePhysics 2017*

  • @workhardism
    @workhardism Před 5 lety +2410

    Mistake in your calculations. Cats have 9 lives. So, you only need 1/9 of a cat to power Norway for a year.

    • @ulfjohnsen6203
      @ulfjohnsen6203 Před 5 lety +142

      workhardism extra lives does not equal extra mass. Also, it does not allow us to extract the cats from the black holes. The mistanke lies in ignoring the power requirement of running a black hole generator.

    • @asher879
      @asher879 Před 5 lety +79

      @@ulfjohnsen6203 woooooosh

    • @quantumflare
      @quantumflare Před 5 lety +164

      No, after the cat collides with its anti-matter buddy, it comes back and so does the antimatter cat 9 times, therefore powering Norway for 18 years instead of 2 years.

    • @Kindyno
      @Kindyno Před 5 lety +109

      @@quantumflare wouldn't the anti cat have negative lives though?

    • @MatthewSmith-sz1yq
      @MatthewSmith-sz1yq Před 5 lety +87

      kindyno yes, it has 9 antilives

  • @nicholaslainez5408
    @nicholaslainez5408 Před 4 lety +1335

    How many kilos of coal needed to power Tokyo. Nah
    How many tons of uranium needed to power New York. Nah
    How many cats needed to power Norway. Perfect

    • @gupta-pw5xb
      @gupta-pw5xb Před 4 lety +6

      👏

    • @Hilman_Faiz
      @Hilman_Faiz Před 4 lety +49

      you missed the chance to say PURRFECT

    • @gupta-pw5xb
      @gupta-pw5xb Před 4 lety +1

      @@Hilman_Faiz Exactly

    • @verzangel2106
      @verzangel2106 Před 4 lety +2

      Unnskyld meg hvor kan jeg finne den nærmeste SPAR? Trenger Prior 2kg kyllinger ellers dør jeg, takk!!

    • @Operational117
      @Operational117 Před 4 lety +1

      boneset777
      Fikk du Prior 2kg kylling eller?
      Hvis ingen svar får jeg frykte det verste... 😣

  • @electricitybomb
    @electricitybomb Před 3 lety +660

    "we dont think of falling to the ground as a source of energy"
    Dams: am I a joke to you?

    • @hashbrown_blitz8869
      @hashbrown_blitz8869 Před 3 lety +17

      Ahhh we forgot about you

    • @neolexiousneolexian6079
      @neolexiousneolexian6079 Před 3 lety +67

      He actually said "as a way of converting mass into energy".

    • @junholee4961
      @junholee4961 Před 3 lety +16

      @@neolexiousneolexian6079 Except that waters falling through dams also lose mass, just that it is a unit of nanograms

    • @natchu96
      @natchu96 Před 3 lety +48

      @@junholee4961 but the point is that nobody *thinks* of it as converting mass into energy, much as they don't for chemical reactions. The mass lost is too insignificant.

    • @junholee4961
      @junholee4961 Před 3 lety

      @@natchu96 well.. context.

  • @kshitijsalunke2620
    @kshitijsalunke2620 Před 3 lety +69

    cats watching this video must be like:
    *meow*

  • @keris3920
    @keris3920 Před 6 lety +1999

    My cat would still find a way to land on its feet.

  • @yonghokim
    @yonghokim Před 5 lety +2443

    *deeply inhales the fragrance of ten billion cats burning to power norway*

  • @adityashankar5267
    @adityashankar5267 Před 3 lety +61

    1:06 Man: Fire
    Cat: E = Mc^2
    Evolution wasted

  • @marsy_
    @marsy_ Před 3 lety +55

    I love the wording here. "Unreasonably efficient." It sounds kind of passive aggressive.

    • @ICreatedU1
      @ICreatedU1 Před 2 lety +4

      I think it might be in reference to a famous 1960 paper titled: "The unreasonable effectiveness of Mathematics in the Natural Sciences" but it's just a guess.

  • @aditsood9369
    @aditsood9369 Před 5 lety +1614

    All the dislikes in this video are from cats.

    • @workhardism
      @workhardism Před 5 lety +35

      All the likes are from dogs.

    • @thiagoeduardo4421
      @thiagoeduardo4421 Před 4 lety +9

      And vegans

    • @montrealquebec87
      @montrealquebec87 Před 4 lety +3

      I didn't give a dislike but possibly from me too just cause I'm too stupid to understand this and I'd rather blame others than myself for my own ignorance.

    • @chaseferdinand2242
      @chaseferdinand2242 Před 4 lety +1

      Nope, it's from people who realize that this is impossible to do to get that energy.

    • @torbenvanhaesslich
      @torbenvanhaesslich Před 4 lety +1

      From cats whos familymembers were thrown into black holes

  • @bxdanny
    @bxdanny Před 5 lety +426

    42%? The answer to life, the universe, and everything: a rotating black hole.

    • @ebinjoephilipphilip2168
      @ebinjoephilipphilip2168 Před 4 lety +25

      Huzzah, a man of culture!!!!!

    • @jos-jy7lq
      @jos-jy7lq Před 4 lety +11

      Tats the only reason I started watching.... Turns out it's quite interesting... Dx

    • @flop645
      @flop645 Před 4 lety +22

      A paragraph describing galactic civilizations' main source of energy to be throwing cats into black holes is exactly something that would show up in Hitchhiker's Guide

    • @anameyoucantremember
      @anameyoucantremember Před 4 lety +10

      Now it certainly makes sense! The real problem of everything is Energy and now we know how to make the most energy!! Throwing cats to rotating black holes, of course. The towels are to catch the cats, in case you're wondering.

    • @jabbajane1124
      @jabbajane1124 Před 4 lety +7

      One cannot call themself 'hot' until they have yeeted themself into a rotating blackhole

  • @shauryaseam4597
    @shauryaseam4597 Před 3 lety +38

    Minute: Want energy, throw a cat into a black hole.... ME SEEING AT MY CAT EVILY AFTER MY PHONE IS ONLY 1% CHARGED..

  • @harshchaurasia5869
    @harshchaurasia5869 Před 3 lety +501

    This guy: Throw two and a half cats into a black hole to power Norway for a year.
    *PETA wants to know your location*

    • @fuuryuuSKK
      @fuuryuuSKK Před 3 lety +20

      They'd use pitbulls instead

    • @MonkeyJedi99
      @MonkeyJedi99 Před 3 lety +8

      The cats can have died of natural causes after a long and comfortable life with good health care.

    • @marcochimio
      @marcochimio Před 3 lety +26

      But what if we throw PETA into a black hole instead? Now, cats are safe from people, and people are safe from PETA.

    • @Nuclearburrit0
      @Nuclearburrit0 Před 3 lety +13

      @@marcochimio I see no flaws with this arrangement

    • @nitrogamer8222
      @nitrogamer8222 Před 3 lety +1

      @@marcochimio perfect ifea

  • @ohtobetiramisu
    @ohtobetiramisu Před 6 lety +1267

    "You only need to throw 17 cats into a black hole to power Norway for a year."
    Never thought I'd hear that sentence in my life.

    • @insertnamehere001
      @insertnamehere001 Před 6 lety +56

      Imagine telling somebody from the Medieval Period.

    • @dan00b8
      @dan00b8 Před 6 lety +3

      insertnamehere001 😂😂😂😂😂😂😂😂

    • @ArKeTiCt
      @ArKeTiCt Před 5 lety +2

      Neither did anyone... actually.

    • @fof1682
      @fof1682 Před 5 lety

      Not the first Ive I heard it

    • @Kindyno
      @Kindyno Před 5 lety +19

      I'm more concerned about the two and a half cats. Who only has half a cat.

  • @micahphilson
    @micahphilson Před 6 lety +2550

    I say we make the international standard of energy conversion the "Norwegian Cats per Year" quotient.

  • @2009dodgeChallenger
    @2009dodgeChallenger Před 2 měsíci +13

    This guy really doesn't like cats...

  • @huzaifamufaddal9329
    @huzaifamufaddal9329 Před 3 lety +44

    Since I was a child and thought about going for science, this was one of the things that brought me to it, how can we take the most out of things?

  • @wanyinleung912
    @wanyinleung912 Před 6 lety +2323

    I love how cat becomes the standard unit of mass in science videos

    • @RubenKelevra
      @RubenKelevra Před 6 lety +23

      I thought the standard unit are hamsters?

    • @gabor6259
      @gabor6259 Před 6 lety +94

      Because of Schrödinger's cat and the fact that a positively charged ion is a CATion.

    • @danielmattos2813
      @danielmattos2813 Před 6 lety +4

      Wan Yin Leung for we will never know if the cat is dead or alive

    • @piotrj333
      @piotrj333 Před 6 lety +6

      Yea and soon measuremen of force will me Meutons.

    • @facelessman9224
      @facelessman9224 Před 6 lety +3

      Shroedinger would be proud.

  • @dblaze23
    @dblaze23 Před 6 lety +451

    I like it how cats are the basic units for calculating stuff over internet.

    • @PaleoGeek
      @PaleoGeek Před 6 lety +11

      Actually Toyota Corollas are the best unit of measurement.

    • @vovochen
      @vovochen Před 6 lety

      *I think Mexicans can work too*

    • @subliminal6529
      @subliminal6529 Před 6 lety

      I just bought a new house, it cost me the entire food of the life spawn of 17 cats.

    • @WalterPavlikII
      @WalterPavlikII Před 6 lety

      Because many use the Internet to worship cats

    • @shravanbhat7389
      @shravanbhat7389 Před 2 lety

      Mullas please leave India

  • @grantcrispin346
    @grantcrispin346 Před rokem +8

    how, may I ask, would you get 2.5 cats?

    • @rustyshackleford48
      @rustyshackleford48 Před 13 dny

      You may not like it, but I believe you already know the answer....

  • @marlonvelasco8317
    @marlonvelasco8317 Před 4 měsíci +6

    Okay, got the black hole, but I’m having troubles finding a cat

  • @8o8inSquares
    @8o8inSquares Před 6 lety +1994

    Alright, thanks for the suggestion, gonna try it tomorrow.

    • @maxxl7747
      @maxxl7747 Před 6 lety +5

      GOOD LUCK!!!
      JK

    • @DoctorX149
      @DoctorX149 Před 6 lety +73

      Throw a person in a black whole they weigh the same as roughly 36 cats, 1 human life < 36 adorable cats

    • @tmoe_ow2523
      @tmoe_ow2523 Před 6 lety

      Not anymore

    • @setha6096
      @setha6096 Před 6 lety +6

      Kitty 2281 Yah, just leave Norway without power.

    • @dineshbh3837
      @dineshbh3837 Před 6 lety

      But dude, you want the energy to be stored

  • @clemenskorella5135
    @clemenskorella5135 Před 4 lety +2572

    Norway: "We have a energy crisis..."
    -> Cat's stock price goes to 1.000 Bitcoins

    • @lgn9818
      @lgn9818 Před 4 lety +6

      this killed me

    • @brandonv2026
      @brandonv2026 Před 4 lety +9

      Clemens Korella stonks

    • @LukePalmer
      @LukePalmer Před 4 lety +46

      Lol yeah let's use bitcoin in an energy crisis that makes sense

    • @romist6465
      @romist6465 Před 4 lety +4

      I read that as both one point nought nought nought and one thousand.

    • @vaevictus4637
      @vaevictus4637 Před 4 lety +8

      I appreciate you measuring the value in BTC. lmao

  • @cbarnes2160
    @cbarnes2160 Před rokem +12

    With a small enough black hole, you can convert 100% of the infalling mass to energy. Small ones are "hot" and have significant Hawking radiation. So you get one that's the right size to produce the power you want and then throw in mass periodically to keep it from getting smaller. If you stop feeding it, it shrinks, gets hotter and radiates faster and eventually blows up. But keeping it in balance is pretty easy if you are talking power needs along the lines of Norway or the world. Trickier if you want really gigantic power production from a smaller black hole.

  • @metaversian2685
    @metaversian2685 Před rokem +5

    "Chemical reactions are really bad at converting mass to energy"
    Cars: *start sweating*

  • @derekwilson3301
    @derekwilson3301 Před 4 lety +237

    kurzgesagt: birds in a black hole
    minutephysics: cats in a black hole

    • @Nick-kd7me
      @Nick-kd7me Před 4 lety +1

      Yes

    • @enderman5423
      @enderman5423 Před 4 lety +1

      Lol p.s. what is kurgezat

    • @chrono-glitchwaterlily8776
      @chrono-glitchwaterlily8776 Před 4 lety +6

      @@enderman5423 watch it. It is a great channel.

    • @h00db01i
      @h00db01i Před 4 lety

      the man who brought us Microsux Windope is still allowed to show his faec :D you do know how shady his charity operates, right?

    • @SmellyNutz
      @SmellyNutz Před 4 lety +5

      kurgezat is an amazing youtube channell
      here is the link: czcams.com/users/Kurzgesagt

  • @Clangdon0148
    @Clangdon0148 Před 6 lety +1223

    anticatter?

  • @housellama
    @housellama Před 2 lety

    I just finished watching a video about r-isco and spinning black holes. Excellent stuff

  • @BloodyMobile
    @BloodyMobile Před rokem +7

    Throwing cats into black holes to power norway.
    This is the weirdest episode ever and I love it

  • @DarkThomy
    @DarkThomy Před 4 lety +761

    4:56 "42% efficiency..."
    "Coincidence, I think not !"

    • @davidtitanium22
      @davidtitanium22 Před 4 lety +83

      The answer to everything

    • @-_-november16
      @-_-november16 Před 4 lety +48

      I was literally about to comment the same thing. It's a shame not a lot of people know the answer

    • @burtosis
      @burtosis Před 4 lety +92

      Everyone knows the answer, but we forgot the question.

    • @oitthegroit1297
      @oitthegroit1297 Před 4 lety +6

      Based

    • @hommadi2001
      @hommadi2001 Před 4 lety +14

      DON'T PANIC

  • @japascho
    @japascho Před 4 lety +1692

    "hey, why are you throwing yourself to the floor?"
    "I'm loosing mass"

    • @hashbrown_blitz8869
      @hashbrown_blitz8869 Před 3 lety +49

      "You're too fat"

    • @LeonBlack666
      @LeonBlack666 Před 3 lety +10

      No? You are releasing energy from your mass, the mass stays the same

    • @susnojutsu2525
      @susnojutsu2525 Před 3 lety +113

      @@LeonBlack666 Well the mass is turning into energy so they are losing mass.

    • @-cookiezila-461
      @-cookiezila-461 Před 3 lety +12

      @@susnojutsu2525 That breaks the law of conservation of energy
      But Japascho would be losing mass by having his cells ripped off from him by the air

    • @kushagrasharma6541
      @kushagrasharma6541 Před 3 lety +42

      @@LeonBlack666 That's incorrect. The mass does reduce. Wasn't this taught in the final year of HighSchool?

  •  Před 2 lety +3

    I had no idea the event horizon would be further in in the spinning black hole. I thought the size depended on mass only and had wondered if it possibly was because space couldn't hold more information in that volume.

  • @ludwigmattsson3173
    @ludwigmattsson3173 Před 3 lety +5

    I like the idea of sacreficing cats to the cosmos to get energy in return

  • @s3rmak123
    @s3rmak123 Před 6 lety +531

    No cats were harmed in the making of this film.

    • @vincentcantin7029
      @vincentcantin7029 Před 6 lety +17

      Or they did after loosing 42% of their mass, but we will never know.

    • @FroZenMemes
      @FroZenMemes Před 6 lety +6

      Vincent Cantin Sounds like a great diet

    • @shiroineko13
      @shiroineko13 Před 6 lety +7

      All information was lost after throwing the cats into the black hole, so you can't tell if any were harmed.

    • @aidan8055
      @aidan8055 Před 6 lety +1

      Mpd but they were by calculating this

    • @mjbull5156
      @mjbull5156 Před 6 lety +2

      Now you just have figure out how to capture a rotating black hole and how to fully collect the energy from the cats you throw in.

  • @ramoelleusrs6678
    @ramoelleusrs6678 Před 6 lety +786

    If 2,5 inspiraling cats can power Norway for a year, then there's no wonder why the Egyptians looked up to them as gods back in the day.

    • @AR-dr1sb
      @AR-dr1sb Před 6 lety +50

      so what the aliens used them as fuel?......sounds legit

    • @ultimaxkom8728
      @ultimaxkom8728 Před 6 lety +37

      _FUNFACT: Pyramid Giza was built by cats..._

    • @stemm09
      @stemm09 Před 6 lety +16

      But Egyptians didn't even know Norwegians existed.

    • @ramoelleusrs6678
      @ramoelleusrs6678 Před 6 lety +13

      Shh... Don't ruin my moment.

    • @sethgrasse9082
      @sethgrasse9082 Před 6 lety +7

      Humans could produce lots more energy... heyhehejehehehehe

  • @inverrtedd
    @inverrtedd Před rokem

    i like the random notes in the background, adds alot of character to the video

  • @haniefsofi
    @haniefsofi Před 3 lety

    Nicely explained. Thanks

  • @durdleduc8520
    @durdleduc8520 Před 5 lety +1580

    _Watching this video with my cat_
    *You’d only need to throw 17 cats into a black hole to power Norway for a year.*
    _looks at cat_

    • @baileywhite4037
      @baileywhite4037 Před 5 lety +56

      *whispers* Its free energy😉

    • @pbrunet44
      @pbrunet44 Před 5 lety +61

      I'm sorry little one...

    • @idkidk-id8it
      @idkidk-id8it Před 5 lety +46

      pbrunet44 _A soul for a soul_

    • @pbrunet44
      @pbrunet44 Před 5 lety +26

      @@idkidk-id8it _an everlasting exchange_

    • @cedrick25
      @cedrick25 Před 4 lety +17

      This is the law of equivalent exchange

  • @visualbrick6574
    @visualbrick6574 Před 4 lety +957

    News: The earth is running out of renewable energy
    Scientists: Glare at Cats
    the rest is history

    • @blarg2429
      @blarg2429 Před 4 lety +4

      I was going to say that history isn't a science, but I checked and it might be?

    • @yodaadoy2863
      @yodaadoy2863 Před 4 lety +25

      @@blarg2429 I mean cats ARE renewable AND biodegradable...

    • @blarg2429
      @blarg2429 Před 4 lety +8

      @@yodaadoy2863 I think you're onto something here.

    • @Alucard-gt1zf
      @Alucard-gt1zf Před 4 lety +3

      @@blarg2429 no, science has to be able to experiment, you can't experiment with history therefore it's not a science

    • @gammarayneutrino8413
      @gammarayneutrino8413 Před 4 lety +3

      You can not run out of "renewable" energy. (In a billion years, at least)

  • @skippyd9657
    @skippyd9657 Před 3 lety +2

    Cats:*exist
    Norwegians:it's free energy

  • @marcoscabellomoreno2445

    Thanks for the tutorial, in gonna make it now.

  • @westerp
    @westerp Před 6 lety +432

    I assure you no cats are harmed while powering Norway :-)

    • @manwe1532
      @manwe1532 Před 6 lety +11

      tbf all animals are harmed while powering any country

    • @Anirossa
      @Anirossa Před 6 lety +8

      As a Norwegian, I can not assure you this.

    • @Davvos11
      @Davvos11 Před 6 lety +2

      That's what they want you to think

    • @amoghap.8231
      @amoghap.8231 Před 6 lety

      yeet yeet yeet if u do they r gonna eat ur feet

    • @Nocturnal194
      @Nocturnal194 Před 6 lety

      No cats were harmed. Just killed.

  • @X4Alpha4X
    @X4Alpha4X Před 6 lety +94

    see, now making the energy isn't hard, but how would you actually harvest that energy? Solar panels? peltier chips? grabbing all the hot plasma and throwing it into a steam generator? perhaps more cats? that would a be a great video to watch.
    "how to get the energy from black hole accretion disks"

    • @ayushwardhan7663
      @ayushwardhan7663 Před 6 lety +3

      We need to get this comment up there!

    • @clon1122
      @clon1122 Před 6 lety +6

      That's an engineers problem not a scientist.

    • @G3rain1
      @G3rain1 Před 6 lety +5

      Dyson's sphere.

    • @SandroAerogen
      @SandroAerogen Před 6 lety +1

      Dyson swarm of solar panels around the black hole.

    • @guillaumericard1233
      @guillaumericard1233 Před 6 lety +1

      A dyson sphere around the black hole would require wayyyyyyy too many cats.

  • @Planetkid32
    @Planetkid32 Před rokem +2

    We played this video in my college Astronomy class a while ago.

  • @purplehaze2358
    @purplehaze2358 Před rokem +3

    “You’d only need to throw 17 cats into a black hole to power Norway for a year” is just about one of the most cursed things I’ve ever heard.

    • @JohnSmith-ox3gy
      @JohnSmith-ox3gy Před rokem +1

      Better than 3,4/1 000 000 000 cats needed to power Norway by burning them.

  • @Questn
    @Questn Před 6 lety +498

    RETURN CLAUSE: The product is composed of 100% matter: It is the responsibility of the User to make sure that it does not come in contact with antimatter. Under no circumstances will the Manufacturer be liable for User mishandling in this regard.

    • @Alen1000Pro
      @Alen1000Pro Před 6 lety +9

      did not laugh

    • @Questn
      @Questn Před 6 lety +15

      who told you to?

    • @Alen1000Pro
      @Alen1000Pro Před 6 lety +5

      Just a joke man

    • @Questn
      @Questn Před 6 lety +6

      same lol

    • @fusiontricycle6605
      @fusiontricycle6605 Před 6 lety +8

      Questn, actually, as a macroscopic object, we are 99% energy and 1% matter. The protons and neutrons in our atoms weigh more than the sum of their parts (being the quarks inside them). The quarks alone account for 1% of the mass of the hadron and the rest is energy coming from the kinetic energy of the quarks and the strong force interactions binding them together.

  • @p.dillen1907
    @p.dillen1907 Před 6 lety +293

    My ancestors have been mining cats since the Industrial Revolution. It's a reliable source of energy and honest labor.

    • @shellracer3189
      @shellracer3189 Před 6 lety +8

      Peter Dillenbeck I see you're a man of the culture as well

    • @OriginalRaveParty
      @OriginalRaveParty Před 6 lety +3

      Exactly. These days people have gone soft. They just want to mine Bitcoin and Etherium. In my day, we mined cats.

    • @omri9325
      @omri9325 Před 6 lety +1

      Can't wait for them to be worth some good $$$ one day.

  • @Simon_General
    @Simon_General Před 2 lety +6

    I really think that there was a typo in the Chemical Reaction's section:
    I.e., [5e-10 (Released Energy in Grams) / 5e+3 (Cat’s Weight in Grams)] × 100 = 1e-11% (not 1e-9%); and it’d take (after removing the percentage) 1e13 (ten trillion, not ten billion) cats to power Norway with chemical reactions for a year.
    P.S. If one is to use the percentage’s perspective (i.e., in the Nuclear Reaction’s section, 150 cats were supposedly needed (which is 100/0.7 = 142.9 cats)), the Chemical Reaction’s section shall then be needing a hundred billion, also not ten billion, cats.

  • @hareecionelson5875
    @hareecionelson5875 Před rokem +1

    I'm guessing that the chemical energy released in reactions was itself stored as the mass of chemical bonds themselves, which when broken are converted into energy.
    Endothermic reactions presumably result in more mass stored in the reactants, that mass coming from the ambient heat of the room

  • @captainskylink5894
    @captainskylink5894 Před 6 lety +194

    Finally, I have a use for that black hole I have laying around!

    • @neilisbored2177
      @neilisbored2177 Před 6 lety +16

      "Finally, I have a use for that cat I have laying around!"
      FTFY

    • @kullingen6909
      @kullingen6909 Před 5 lety

      If you have a black hole lying around then I think it would be better to sell it to science people

  • @only1kingz
    @only1kingz Před 6 lety +941

    42? So... The answer to life the universe and everything really IS 42???

    • @terrencehedge5647
      @terrencehedge5647 Před 6 lety +107

      No, that is the answer to the ultimate question of life, the universe and everything. No one knows what the question is.

    • @mechasentai
      @mechasentai Před 6 lety +3

      Peter
      No it's 0 actually.

    • @fredderf4655
      @fredderf4655 Před 6 lety +30

      The question is "What's Six times Nine?"
      NOW YOU KNOW

    • @Fiufsciak
      @Fiufsciak Před 6 lety +2

      Peter
      No it's 43 actually

    • @Hawkeyeblock
      @Hawkeyeblock Před 6 lety +3

      Terrence Hedge the question is “What is the answer to six times nine?”

  • @siobhangraham7280
    @siobhangraham7280 Před rokem +12

    There's an even better solution to this with rotating black holes. You can directly harvest the rotational energy of the black hole through superradiance of lasers. Surround it in a reflective surface - or more likely arrange wave guides in specific patterns, and superradiant scattering will dump huge amounts of energy into the laser drawn from the rotational energy of the black hole

    • @sulfo4229
      @sulfo4229 Před rokem +3

      Indeed, but cat is much funnier than lambda

    • @Hello-lf1xs
      @Hello-lf1xs Před 4 měsíci

      I think it’s called a Penrose Sphere, for anyone wondering - Kurzgesagt did a video on it also about the biggest bomb in the universe

  • @dugldoo
    @dugldoo Před 2 lety

    Time to update this great presentation: In Sept, 2020 LIGO reported a merger of two BHs of 85 and 66 solar masses to form a BH of 142 solar masses, radiating 9 solar masses! of gravitational wave energy, so the total BH mass was dramatically reduced (and not by Hawking radiation). What is the mechanism? Where was this mass/energy relative to the EH before merger? I can't find discussions of this anywhere, not in scientific papers, internet presentations or CZcams. Thanks.

  • @akshitbansal6984
    @akshitbansal6984 Před 4 lety +224

    So now we can justify the statements :" CURIOSITY IS GOOD, BUT IT COULD KILL THE CAT"

  • @DragonOfTheSkies
    @DragonOfTheSkies Před 6 lety +1176

    Wow, Norway is powered by cats... I learned something today.

    • @thomasraahauge5231
      @thomasraahauge5231 Před 6 lety +18

      Cats are powerful :-D

    • @thomasraahauge5231
      @thomasraahauge5231 Před 6 lety +12

      DragonOfTheSkies: ohh, _powered_ by cats, not _governed_ by cats. Sorry, my mistake B-)

    • @El_wiwi7
      @El_wiwi7 Před 6 lety +2

      i think we are all powered by kitties. but kitties theirselves are powered by aliens, explaining their weird behaviour

    • @assmatronix
      @assmatronix Před 5 lety +1

      DragonOfTheSkies one cat a year. China should give us all their cats instead of eating them. We'd have enough energy for eternity.

    • @Huma_m1
      @Huma_m1 Před 5 lety

      Not is, COULD be*

  • @MrLethalShots
    @MrLethalShots Před 2 lety

    You should do a video on the Penrose process :D I thought that was where you were going

  • @kv4648
    @kv4648 Před 2 lety +1

    Finally, an explanation to Tatsuya's powers

  • @NewMessage
    @NewMessage Před 6 lety +2365

    HA! I'm not so crazy for heating my house with stray cats now, am I?

    • @imveryangryitsnotbutter
      @imveryangryitsnotbutter Před 6 lety +65

      Not _as_ much, no. :/

    • @shr00m44
      @shr00m44 Před 6 lety +37

      Wait a second here...

    • @jayfawn8478
      @jayfawn8478 Před 6 lety +4

      You're the one who's pretending to understand the video right

    • @dasvidanya1171
      @dasvidanya1171 Před 6 lety +64

      Actually, you're probably doing that via chemical reaction. Still crazy. Crazy inefficient *tsk tsk*

    • @nicotti
      @nicotti Před 6 lety +37

      Depends, are you burning them, splitting/fusing them, or dropping them into black holes?

  • @iceman4382
    @iceman4382 Před 6 lety +111

    If we throw cats in black-hole do they land on their feet?

    • @kidkangaroo5213
      @kidkangaroo5213 Před 6 lety +13

      You're asking the right questions, my friend!

    • @HaloInverse
      @HaloInverse Před 6 lety +3

      I _think_ yes, but asymptotically far into the future for any frame of reference further outwards than the cat's. So if you want to actually see the cat land, you have to throw yourself in at the latest with the cat, if not just ahead of the cat.

    • @maksymcazymir1727
      @maksymcazymir1727 Před 6 lety +2

      Top 10 Questions Science Can't Explain

    • @thenecromancer7487
      @thenecromancer7487 Před 6 lety

      lol

    • @kullingen6909
      @kullingen6909 Před 5 lety +1

      No, no and no. Even if the cat have a spacesuit, the cat will be torn apart before it hits the black hole

  • @mediawolf1
    @mediawolf1 Před 10 měsíci

    The object I threw into the black hole is crashing into stuff as it orbits / spirals in... but the stuff around the black hole is also necessarily orbiting / spiraling in, too. So the crashing doesn't have as much oomph. It's not like my object is crashing into stationary stuff. I could throw it against the tide of the accretion disk-then there'd be more violent crashing-but that goes against the thing he was saying about rotating black holes.

  • @IONProd
    @IONProd Před 3 lety

    I love the units used

  • @spherical98364
    @spherical98364 Před 6 lety +637

    i can't tell if you really love cats or really hate cats

    • @ezman-vn8zy
      @ezman-vn8zy Před 5 lety +10

      Maybe even both?

    • @alexocnean460
      @alexocnean460 Před 5 lety +60

      schrodinger views towards cats

    • @koopa5504
      @koopa5504 Před 5 lety

      @@alexocnean460 looool

    • @humanatee6639
      @humanatee6639 Před 5 lety

      Love. (Why would you hate cats) I’m a dog person thou

    • @vladbcom
      @vladbcom Před 5 lety +1

      Or maybe he likes Norway more than cats? :D

  • @NemJani
    @NemJani Před 6 lety +340

    "You'd only need to throw 17 cats into a black hole to power Norway for a year."
    This is something I know now.

    • @strings1984
      @strings1984 Před 5 lety +1

      one cat would power Norway for about 2.28 million years

    • @syweb2
      @syweb2 Před 5 lety +14

      @@strings1984 That contradicts both everything in the video, and the above comment.

    • @paulc83
      @paulc83 Před 5 lety +3

      Go up to someone and say that

    • @stavrosfay8454
      @stavrosfay8454 Před 5 lety +2

      Paul Chung I txted someone that

    • @Cheesus-Sliced
      @Cheesus-Sliced Před 5 lety

      @@strings1984 Norway could power 1 cat for about 2.28 million years

  • @Androux.
    @Androux. Před rokem +5

    Cat stock 📈

  • @stankfaust814
    @stankfaust814 Před 2 lety

    The big bang made the constituent elements in the universe and black holes (gravitational acceleration ) is the mechanism by which matter is returned to its pure potential or energy state. It's a cycle

  • @SinaZarin
    @SinaZarin Před 5 lety +868

    Maybe 42 is the answer to life the universe and everything.

    • @jaishankarv1847
      @jaishankarv1847 Před 5 lety +8

      You saw the Numberphile video?

    • @pickle6772
      @pickle6772 Před 5 lety +57

      Jaishankar V I mean it’s also a book reference but yeah i guess

    • @vasiljambazov
      @vasiljambazov Před 5 lety +8

      @@jaishankarv1847 OMG I thought I was the only one watching the Numberphile video... So now I can say to my mom that I'm not losing so much time on the internet... Nice!

    • @pedrolib
      @pedrolib Před 5 lety +24

      True, but what's the question?

    • @Mephistahpheles
      @Mephistahpheles Před 5 lety +7

      @@pedrolib 6 x 9 (in base 13)

  • @terjidjurhuus1917
    @terjidjurhuus1917 Před 4 lety +137

    Norwegian minister of energy sees his video:
    "That's it guys, divert all of our funds into researching svarte hul & katter."
    Energy crisis solved.

  • @TheJuryan
    @TheJuryan Před 3 měsíci +1

    is the loss of mass from the reaction of hydrogen and oxygen an actual quantity that was measured or a result of using E=mc^2 to backwards compute the mass from the change in enthalpy?
    from my understanding, no mass is lost in a chemical reaction but rather chemical energy in the form of energy levels of electrons and chemical bonds is being converted to heat energy and vice versa

  • @buttersquids
    @buttersquids Před 3 lety +1

    If fusion is so inefficient, we should shift our fusion research into throwing cats into black holes.

  • @CavCave
    @CavCave Před 5 lety +572

    Instructions unclear. I threw a black hole into a cat to power Norway.

    • @ansh6370
      @ansh6370 Před 5 lety +107

      Well I threw Norway into a cat to power a black hole, totally normal.

    • @BlueTheSquid
      @BlueTheSquid Před 5 lety +77

      @@ansh6370 I threw a black hole into Norway to power a cat.

    • @James3-5
      @James3-5 Před 5 lety +33

      This is the best comment string ever also I tried throwing a Norway into a cat to power a black hole but the cat just spit it up as a hair ball

    • @javitritiwari9538
      @javitritiwari9538 Před 5 lety +39

      Black hole threw me into cat to power Norway

    • @durdleduc8520
      @durdleduc8520 Před 5 lety +21

      Norway through a black hole into me to power cat

  • @abrahamblackmore3115
    @abrahamblackmore3115 Před 5 lety +355

    The idea that you'd cut a cat in half to get the right amount of energy.. I can't stop laughing

    • @FewVidsJustComments
      @FewVidsJustComments Před 4 lety +45

      “To show you the power of black holes, I sawed this cat in half!” (props if u get the reference)
      😂 🐱⚫️

    • @bradpeacock7872
      @bradpeacock7872 Před 4 lety +4

      This got me gd 😂thx for that

    • @Ronald98
      @Ronald98 Před rokem +2

      @@FewVidsJustComments LLLMMAAOOOO! 🤣😂🤣😂

    • @That_Epseon99
      @That_Epseon99 Před rokem +2

      @@FewVidsJustComments The brand new Flex Saw can cut ANYTHING in half!

    • @BambinaSaldana
      @BambinaSaldana Před rokem

      The blood of the martyrs will power the nations of Earth.

  • @Taotaoba
    @Taotaoba Před rokem +1

    I read something before and it said the efficiency could reach almost 100% if you drop the object into a black hole very slowly to almost 0 speed. It was mind blowing.

    • @fitmotheyap
      @fitmotheyap Před rokem

      Time to drop everything, but slowly

  • @samhorn6238
    @samhorn6238 Před 8 měsíci

    In the schwarzchild radius video, you said the mass of the Earth would need to be shoved into a sphere 1cm in diameter to collapse into a black hole; Here you say 2cm, what’s up with that?

  • @Tletna
    @Tletna Před 6 lety +150

    The math is way off in this video. Everybody knows that cats have 9 lives, so each cat can convert 9 times and thus all these numbers should be divided or multiplied by 9 depending upon which direction we're doing the conversions. Remember folks: reduce cat overpopulation, reuse cats up to 9 times and recycle their litter too (it smells bad, might as well burn it away at the same time).

    • @tahneethompson6012
      @tahneethompson6012 Před 6 lety

      yes it is

    • @BluesyBor
      @BluesyBor Před 6 lety +5

      Why burn the litter if you could just throw it into the black hole? It's more efficient and doesn't smell as bad.
      Besides cats can't have 9 lives because it would mean there's like 378% efficiency in their case, which obviously violates the 2nd law of thermodynamics.

    • @Ze_eT
      @Ze_eT Před 6 lety +3

      Because of that, Cats can generate more energy than an Gamma-Ray-Burst, and would thereby make almost the entire Universe collapse. That is why alien live has ceased to exist. Once they found cats, they didn't know about their 9 lives, and threw a cat into a black hole to power their colony. After that, they were completely wiped out, but the solar-system was in the safe zone. You should thank cats for sparing such mere un-cute humans

    • @Thx1138sober
      @Thx1138sober Před 6 lety +1

      I use a cat with buttered toast strapped to its back to levitate my flying car.

    • @thomasraahauge5231
      @thomasraahauge5231 Před 6 lety +1

      How many lives do politicians have? They seem to be rather weighty, so there's an energysource just waiting for us . . .

  • @katlin8474
    @katlin8474 Před 6 lety +56

    Now i know why many cats go missing every year.
    They were thrown into a black hole.

    • @thumptherapist3816
      @thumptherapist3816 Před 6 lety +5

      Tearing the Universe apart one cat at a time

    • @medexamtoolsdotcom
      @medexamtoolsdotcom Před 6 lety

      No minutephysics probably just ate them.

    • @SergioEduP
      @SergioEduP Před 6 lety +2

      We are using them to power Norway.....

    • @ultimaxkom8728
      @ultimaxkom8728 Před 6 lety +3

      No rway! It can't be!

    • @ramoelleusrs6678
      @ramoelleusrs6678 Před 6 lety

      B-b-but, weren't they supposed to be thrown around the black holes' event horizon? You're doing it wrong!

  • @WeissM89
    @WeissM89 Před 8 měsíci

    4:38 Wasn't the event horizon of a rotating black hole squished at the poles, making it larger?

  • @atharvsharma7648
    @atharvsharma7648 Před 3 lety

    The guitar effect is so good

  • @hubi0079
    @hubi0079 Před 6 lety +102

    Ok i got an idea for a new bond villain.
    He throws 3 1/2 cats to a rotating black hole to power his evil plans for a year^^

    • @TomJerry12933
      @TomJerry12933 Před 6 lety +3

      has this bond villian taken over Norway or something?

    • @hubi0079
      @hubi0079 Před 6 lety +3

      Space Norway
      It is like normal Norway just in space and evil.

    • @SamJNE122
      @SamJNE122 Před 6 lety +2

      He's so evil, that he throws *3* 1/2 cats into the black hole, even though he only needed to throw in 2 1/2.

    • @hubi0079
      @hubi0079 Před 6 lety

      He threw in kittens instead of cats because he is soooooo evil.
      As a result he needed more what made him even more evil.

  • @bela_mnnng
    @bela_mnnng Před 5 lety +294

    This video summarized:
    Don’t throw 6 billion cats into a fire...
    Throw 2,5 into a black hole to power Norwegen 🇳🇴 for a year

  • @pkvalsvik
    @pkvalsvik Před rokem

    The little detail that you wrote 1 år instead of one year made my day.... The fact that you talked about throwing cats into black holes made my cat hate you and my dogs love you 🤣🤣

  • @ImFleer
    @ImFleer Před 3 lety

    Awesome drawings 😁

  • @blackholestudios9241
    @blackholestudios9241 Před 6 lety +185

    *A N T I C A T*

    • @blackholestudios9241
      @blackholestudios9241 Před 6 lety +5

      Now the smart comment. A black hole with the mass of the earth would not be 2cm (I know it's not that much) it would actually be 9mm.

    • @HuslWusl
      @HuslWusl Před 6 lety

      Black Hole Studios I like how you said "I know that's not that much" because you probably used to learn the imperial system in school but you're also proud of yourself and think it makes you look smarter because you know the metric system. :D

  • @tyl3nolmusic646
    @tyl3nolmusic646 Před 4 lety +102

    "Antimatter is not matter but it's also not not matter"
    ~Some scientist from Galaxy on Fire 2 HD

    • @peterhodgson3696
      @peterhodgson3696 Před 3 lety

      Or 'antimatter is not matter, but it's also not not light'

    • @Derpy-qg9hn
      @Derpy-qg9hn Před 3 lety +1

      Someone who knows what Galaxy on Fire was? wew

    • @coccoborg
      @coccoborg Před 3 lety +1

      @@Derpy-qg9hn pretty incredible, but me too! I found the campaign pretty fun back in the day, played through all of it on my Mac back in 2011

    • @shivam7156
      @shivam7156 Před 3 lety

      nega matter

    • @drumrollplease631
      @drumrollplease631 Před 3 lety

      Oh my, i love that game

  • @cyitain9856
    @cyitain9856 Před rokem

    Assuming that we some day create a processes that can capture energy from matter, anti-matter annihilation and turn it into anti-matter con be done at more than 50% efficiency so long as we keep feeding in matter we sustain this cycle and use the energy not used to create more antimatter as profit to power things or create even more anti-matter. So long as this process is scalable you could in theory start from a single anti-quark (bit small, anti-hydrogen would be better) and keep feeding in mass and scaling your anti-matter production until you are producing sufficient power. This will obviously take a huge amount of mass, just a fun thought though.

  • @johnchessant3012
    @johnchessant3012 Před 3 lety +1

    I was gonna say that I feel bad for the cat that has to be chopped in half for this to work, but honestly, getting chopped in half is a much less painful way to die than being spaghettified in a black hole.

  • @judassson
    @judassson Před 6 lety +73

    Step 1 find a cat
    Step 2 throw the cat into a spinning black hole
    Step 3 find a way to extract energy from black hole
    Step 4 rule norway

    • @StephenGillie
      @StephenGillie Před 5 lety +6

      Step 5 ???
      Step 6 Profit

    • @Alexander99602
      @Alexander99602 Před 5 lety

      We could extract the energy using some sort of solar panels? It's heat, right?

    • @dariobarisic3502
      @dariobarisic3502 Před 5 lety

      @@Alexander99602 Google Penrose process. You can literally extract energy from a black hole on the expense of its rotation. Basically, you'd have to throw a cat into the region called ergosphere (which is the region where things cannot stay stationary anymore) with the right amount of speed and in certain direction. End product is the cat (unfortunately to be more precise, a part of the cat) emerging out with more kinetic energy than she initially had.

    • @Alexander99602
      @Alexander99602 Před 5 lety

      @@dariobarisic3502 guess we found a good ideea how to gain energy... Too bad we can't use it for now

    • @santiagorubio3987
      @santiagorubio3987 Před 5 lety

      Instructions unclear, powered Sweden instead

  • @nayutaito9421
    @nayutaito9421 Před 4 lety +273

    Me: But how do you change the radiation into electricity?
    People: We boil water with it and rotate a turbine!

    • @kerbodynamicx472
      @kerbodynamicx472 Před 4 lety +3

      Nayuta Ito you can also harvest the mechanical energy.

    • @ynntari2775
      @ynntari2775 Před 3 lety +74

      Looks at Dyson Sphere
      "wow, so fancy and advanced! How do it works?"
      "we pick the heat from the star, boil water with it and spin some turbines"

    • @dsdy1205
      @dsdy1205 Před 2 lety +33

      @@ynntari2775 500 years after:
      Humanity has learnt to extract infinite amounts of vacuum energy in order to boil water and spin turbines.

    • @ynntari2775
      @ynntari2775 Před 2 lety +23

      Humans spend so much time trying to define what elements they associate with humanity. If aliens see humans, humanity's associated element would be spinning turbines.

    • @shay2559
      @shay2559 Před 2 lety +7

      Well humanity discovered a new way
      Solar cells

  • @krischan67
    @krischan67 Před 3 lety +1

    To be precise, black holes produce so much energy from stuff falling into them because those 42% are the mass equivalent of the kinetic energy gained by it which can be turned into radiation e.g. by fricton. None of the rest mass of the object is converted to energy, assuming it doesn't undergo nuclear reactions in the process (which would not add much to it anyway, as said in the video) or get into an environment that is extreme enough to violate particle conservation laws. Hawking radiation violates particle conservation, for example.
    Another pretty efficient energy source involving black holes is to extract rotational energy from it. That can be achieved by sending stuff close to it, but not so close that it cannot escape anymore on its own, which can lead to that stuff ending up with a higher sum of kinetic plus potential energy than before... or perhaps it just works wirh photons which can end up witha higher frequency (aka more energy) than before, I'm not sure (there is a video about it somewhere on CZcams). That would be an almost limitless source of energy, as black holes can have stupendously huge amounts of it. For example, the supermassive black hole at M87 (the one we have a picture of) has a rotational energy of about the equivalent of 10 trillion supernova explosions IIRC... and a few people here might know about how huge just a single supernova is, from the following cite from what-if.xkcd.com/73/
    "However big you think supernovae are, they're bigger than that.
    Here's a question to give you a sense of scale: Which of the following would be brighter, in terms of the amount of energy delivered to your retina:
    - A supernova, seen from as far away as the Sun is from the Earth, or
    - The detonation of a hydrogen bomb pressed against your eyeball?
    Applying the physicist rule of thumb suggests that the supernova is brighter. And indeed, it is ... by nine orders of magnitude."
    Just a single supernova is so huge that some astronomers use a separate energy term for it: The foe. It stands for "ten to the *F*ifty-*O*ne *E*rg" which is the order of magnitude of a supernova, in cgs units which are still common in astronomy.

  • @tynado7807
    @tynado7807 Před 5 měsíci

    4:55 we finally know why 42 is the answer to life, the universe, and everything.