The Unreasonable Efficiency of Black Holes

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Thanks to brilliant.org/minutephysics for sponsoring this video! Check out their black hole course at brilliant.org/minutephysicsbla...
Support MinutePhysics on Patreon! / minutephysics
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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
And facebook - / minutephysics
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

Пікірлер: 8 700

@undead890 4 жыл бұрын

New unit of energy: Norway Cat Years.

@blarg2429 4 жыл бұрын

Annual Norwegian Cats (ANC).

@andrewhalvorsen6208 4 жыл бұрын

Cats per Norway

@Helperbot-2000 4 жыл бұрын

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

@n1k32h 4 жыл бұрын

undead890 Pussy IS powerful

@ADRENERGlC 4 жыл бұрын

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

@freeonreal 5 жыл бұрын

❌ Joules ❌ Watts ✔️ Cats

@gushhygang 5 жыл бұрын

@@GottfriedLeibnizYT me likey

@bxdanny 5 жыл бұрын

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

@GottfriedLeibnizYT 5 жыл бұрын

@Dan Schwartz And why is that?

@zenthora4910 4 жыл бұрын

@@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 4 жыл бұрын

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

@chribu_ 3 жыл бұрын

"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

@Ragnarok93 3 жыл бұрын

"2 and 1/2"instead of 17

@treeamble585 3 жыл бұрын

@uselessmemberofsociety7460 2 жыл бұрын

I read this comment to my brother and he said: "Why would you need to power Norway? They have coal."

@samsunguser3148 2 жыл бұрын

I'm find our cat and throw em to the black hole lmao

@VaregianEisselor 2 жыл бұрын

And they still say that ancient sacrifices were useless

@tacticallemon7518 3 жыл бұрын

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 3 жыл бұрын

*Your parents would be proud*

@askani21 Жыл бұрын

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

@I_killed_that_beard_guy Жыл бұрын

Parents: ok you will now live in basement

@EdKolis Жыл бұрын

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

@halvis82 4 жыл бұрын

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

@xander8323 4 жыл бұрын

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

@dry5778 4 жыл бұрын

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 4 жыл бұрын

Dolan pls

@undyingUmbrage 4 жыл бұрын

@aDBo'Ch 1 what are you talking about

@francisdimaano2350 4 жыл бұрын

@@undyingUmbrage weirdo stuff

@ormirian7364 5 жыл бұрын

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

@n0nenone 4 жыл бұрын

Lol

@adarshsridhar6051 4 жыл бұрын

Needs more liked

@harrypotter1155 4 жыл бұрын

Hahahahahahahahahaha

@hitooom9997 4 жыл бұрын

Dog

@thegamerpokemon5767 4 жыл бұрын

😂😂

@maheenmashrur2574 3 жыл бұрын

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

@Rudxain Жыл бұрын

This is so sus 😳

@PolyDawg Жыл бұрын

Shane Dawson agrees

@luzellemoller6621 Жыл бұрын

Yes cuace it's fun and it means people will listen

@marsy_ 3 жыл бұрын

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

@randomjin9392 4 жыл бұрын

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

@esajpsasipes2822 4 жыл бұрын

m is mass

@jyotibasu408 4 жыл бұрын

R/woosh

@matthewjones7366 4 жыл бұрын

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

@matthewjones7366 4 жыл бұрын

@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 4 жыл бұрын

studio Já Games woosh

@workhardism 5 жыл бұрын

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

@ulfjohnsen6203 5 жыл бұрын

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 5 жыл бұрын

@@ulfjohnsen6203 woooooosh

@quantumflare 5 жыл бұрын

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 5 жыл бұрын

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

@MatthewSmith-sz1yq 5 жыл бұрын

kindyno yes, it has 9 antilives

@electricitybomb 3 жыл бұрын

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

@hashbrown_blitz8869 3 жыл бұрын

Ahhh we forgot about you

@neolexiousneolexian6079 3 жыл бұрын

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

@junholee4961 3 жыл бұрын

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

@natchu96 3 жыл бұрын

@@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 3 жыл бұрын

@@natchu96 well.. context.

@JK-qv5wm Жыл бұрын

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

@ohtobetiramisu 6 жыл бұрын

"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 6 жыл бұрын

Imagine telling somebody from the Medieval Period.

@dan00b8 6 жыл бұрын

insertnamehere001 😂😂😂😂😂😂😂😂

@ArKeTiCt 5 жыл бұрын

Neither did anyone... actually.

@fof1682 5 жыл бұрын

Not the first Ive I heard it

@Kindyno 5 жыл бұрын

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

@nicholaslainez5408 4 жыл бұрын

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 4 жыл бұрын

👏

@Hilman_Faiz 4 жыл бұрын

you missed the chance to say PURRFECT

@gupta-pw5xb 4 жыл бұрын

@@Hilman_Faiz Exactly

@verzangel2106 4 жыл бұрын

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

@Operational117 4 жыл бұрын

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

@AlexandarHullRichter 2 жыл бұрын

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 Жыл бұрын

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

@gamerxdking4369 Жыл бұрын

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

@mightycannon1512 Жыл бұрын

Wait how do they stop the hawking radiation

@AlexandarHullRichter Жыл бұрын

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

@AlexandarHullRichter Жыл бұрын

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

@shauryaseam4597 3 жыл бұрын

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

@mushpi7 2 жыл бұрын

hehe

@andrewzhan5207 3 ай бұрын

CHILL MATE

@sharpnerw1093 2 ай бұрын

r/ihadastroke ?

@yonghokim 5 жыл бұрын

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

@robertjohnsonfox8829 5 жыл бұрын

Lol.

@fof1682 5 жыл бұрын

I would “Never” do that

@user-xg1ew8op3p 5 жыл бұрын

Fragrance? So sarcastic

@astr0nox 5 жыл бұрын

666 likes

@invictusaegis2653 5 жыл бұрын

NO ONE LIKE HIM HE HAS 666 LEAVE IT ALONE IF YOU LIKE IT YOU HAVE BLUE WAFFEL AND 10 SECONDS TO LIVE

@wanyinleung912 6 жыл бұрын

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

@RubenKelevra 6 жыл бұрын

I thought the standard unit are hamsters?

@gabor6259 6 жыл бұрын

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

@danielmattos2813 6 жыл бұрын

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

@piotrj333 6 жыл бұрын

Yea and soon measuremen of force will me Meutons.

@facelessman9224 6 жыл бұрын

Shroedinger would be proud.

@harshchaurasia5869 3 жыл бұрын

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 3 жыл бұрын

They'd use pitbulls instead

@MonkeyJedi99 3 жыл бұрын

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

@marcochimio 3 жыл бұрын

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

@Nuclearburrit0 3 жыл бұрын

@@marcochimio I see no flaws with this arrangement

@nitrogamer8222 3 жыл бұрын

@@marcochimio perfect ifea

@kshitijsalunke2620 3 жыл бұрын

cats watching this video must be like: *meow*

@bxdanny 5 жыл бұрын

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

@ebinjoephilipphilip2168 4 жыл бұрын

Huzzah, a man of culture!!!!!

@jos-jy7lq 4 жыл бұрын

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

@flop645 4 жыл бұрын

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 4 жыл бұрын

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 4 жыл бұрын

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

@clemenskorella5135 4 жыл бұрын

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

@lgn9818 4 жыл бұрын

this killed me

@brandonv2026 4 жыл бұрын

Clemens Korella stonks

@LukePalmer 4 жыл бұрын

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

@romist6465 4 жыл бұрын

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

@vaevictus4637 4 жыл бұрын

I appreciate you measuring the value in BTC. lmao

@adityashankar5267 3 жыл бұрын

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

@marsy_ 3 жыл бұрын

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

@ICreatedU1 2 жыл бұрын

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.

@EugeneKhutoryansky 6 жыл бұрын

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

@jmchez 6 жыл бұрын

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 6 жыл бұрын

ikr

@Nothing2150 6 жыл бұрын

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

@Silverwind87 6 жыл бұрын

ONE SICK PUPPY

@douglasphillips5870 6 жыл бұрын

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.

@keris3920 6 жыл бұрын

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

@3la5t1c81rdy 5 жыл бұрын

@The Chrome Knight No u

@n0nenone 4 жыл бұрын

@@3la5t1c81rdy just u

@3la5t1c81rdy 4 жыл бұрын

@@n0nenone Hi

@n0nenone 4 жыл бұрын

@@3la5t1c81rdy HL😅

@HyonkTea 4 жыл бұрын

@@3la5t1c81rdy *yes* you

@marlonvelasco8317 4 ай бұрын

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

@2009dodgeChallenger 2 ай бұрын

This guy really doesn't like cats...

@japascho 4 жыл бұрын

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

@hashbrown_blitz8869 3 жыл бұрын

"You're too fat"

@LeonBlack666 3 жыл бұрын

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

@susnojutsu2525 3 жыл бұрын

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

@-cookiezila-461 3 жыл бұрын

@@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 3 жыл бұрын

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

@durdleduc8520 5 жыл бұрын

_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 5 жыл бұрын

*whispers* Its free energy😉

@pbrunet44 5 жыл бұрын

I'm sorry little one...

@idkidk-id8it 5 жыл бұрын

pbrunet44 _A soul for a soul_

@pbrunet44 5 жыл бұрын

@@idkidk-id8it _an everlasting exchange_

@cedrick25 4 жыл бұрын

This is the law of equivalent exchange

@huzaifamufaddal9329 3 жыл бұрын

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?

@metaversian2685 Жыл бұрын

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

@micahphilson 6 жыл бұрын

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

@bastianandersson4168 5 жыл бұрын

Micah Philson “The iphone battery runs on around 1000 NC/Y’s”

@leland818 5 жыл бұрын

Bastian Andersson - that sounds like a very inefficient or defective battery

@aloshikhabhattacharjee8069 5 жыл бұрын

Good name

@vincent_bishop9040 5 жыл бұрын

Don't you mean Norwegian cats PURR year?

@colgatetoofpaste 5 жыл бұрын

Vincent Bishop 1990 no please

@aditsood9369 5 жыл бұрын

All the dislikes in this video are from cats.

@workhardism 5 жыл бұрын

All the likes are from dogs.

@thiagoeduardo4421 4 жыл бұрын

And vegans

@montrealquebec87 4 жыл бұрын

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 4 жыл бұрын

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

@torbenvanhaesslich 4 жыл бұрын

From cats whos familymembers were thrown into black holes

@BloodyMobile Жыл бұрын

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

@grantcrispin346 Жыл бұрын

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

@rustyshackleford48 6 күн бұрын

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

@dblaze23 6 жыл бұрын

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

@PaleoGeek 6 жыл бұрын

Actually Toyota Corollas are the best unit of measurement.

@vovochen 6 жыл бұрын

*I think Mexicans can work too*

@subliminal6529 6 жыл бұрын

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

@WalterPavlikII 6 жыл бұрын

Because many use the Internet to worship cats

@shravanbhat7389 2 жыл бұрын

Mullas please leave India

@derekwilson3301 4 жыл бұрын

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

@Nick-kd7me 4 жыл бұрын

Yes

@enderman5423 4 жыл бұрын

Lol p.s. what is kurgezat

@chrono-glitchwaterlily8776 4 жыл бұрын

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

@h00db01i 4 жыл бұрын

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 4 жыл бұрын

kurgezat is an amazing youtube channell here is the link: kzfaq.info

@cbarnes2160 Жыл бұрын

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.

@mffthefrog1307 7 ай бұрын

That’s actually really smart.

@housellama 2 жыл бұрын

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

@p.dillen1907 6 жыл бұрын

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

@shellracer3189 6 жыл бұрын

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

@OriginalRaveParty 6 жыл бұрын

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

@omri9325 6 жыл бұрын

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

@DarkThomy 4 жыл бұрын

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

@davidtitanium22 4 жыл бұрын

The answer to everything

@-_-november16 4 жыл бұрын

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

@burtosis 4 жыл бұрын

Everyone knows the answer, but we forgot the question.

@oitthegroit1297 4 жыл бұрын

Based

@hommadi2001 4 жыл бұрын

DON'T PANIC

@ludwigmattsson3173 3 жыл бұрын

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

@skippyd9657 3 жыл бұрын

Cats:*exist Norwegians:it's free energy

@visualbrick6574 4 жыл бұрын

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

@blarg2429 4 жыл бұрын

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

@yodaadoy2863 4 жыл бұрын

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

@blarg2429 4 жыл бұрын

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

@Alucard-gt1zf 4 жыл бұрын

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

@gammarayneutrino8413 3 жыл бұрын

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

@8o8inSquares 6 жыл бұрын

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

@maxxl7747 6 жыл бұрын

GOOD LUCK!!! JK

@DoctorX149 6 жыл бұрын

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

@tmoe_ow2523 6 жыл бұрын

Not anymore

@setha6096 6 жыл бұрын

Kitty 2281 Yah, just leave Norway without power.

@dineshbh3837 6 жыл бұрын

But dude, you want the energy to be stored

2 жыл бұрын

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.

@haniefsofi 3 жыл бұрын

Nicely explained. Thanks

@oternoj 6 жыл бұрын

I'm Norwegian, and I can confirm that we incinerate 10 billion cats each year to fuel our power grids.

@TheJespeon 6 жыл бұрын

Can confirm, but it's more like 7 billion. Because they're fat cats.

@philrod1 6 жыл бұрын

DavidKlausen - I heard Norway was leading the way on the much more efficient and socially acceptable squirrel incineration.

@mrono1910 6 жыл бұрын

Inchido what They dont mainly make browncheese with goat milk They mostly use normal cow milk

@obibellowme 6 жыл бұрын

StarComet 04 ja la oss snakke norsk i stede

@js-yall 6 жыл бұрын

DavidKlausen how metal

@ramoelleusrs6678 6 жыл бұрын

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 6 жыл бұрын

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

@ultimaxkom8728 6 жыл бұрын

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

@stemm09 6 жыл бұрын

But Egyptians didn't even know Norwegians existed.

@ramoelleusrs6678 6 жыл бұрын

Shh... Don't ruin my moment.

@sethgrasse9082 6 жыл бұрын

Humans could produce lots more energy... heyhehejehehehehe

@inverrtedd Жыл бұрын

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

@marcoscabellomoreno2445 3 жыл бұрын

Thanks for the tutorial, in gonna make it now.

@s3rmak123 6 жыл бұрын

No cats were harmed in the making of this film.

@vincentcantin7029 6 жыл бұрын

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

@FroZenMemes 6 жыл бұрын

Vincent Cantin Sounds like a great diet

@shiroineko13 6 жыл бұрын

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

@aidan8055 6 жыл бұрын

Mpd but they were by calculating this

@mjbull5156 6 жыл бұрын

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.

@westerp 6 жыл бұрын

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

@manwe1532 6 жыл бұрын

tbf all animals are harmed while powering any country

@Anirossa 6 жыл бұрын

As a Norwegian, I can not assure you this.

@Davvos11 6 жыл бұрын

That's what they want you to think

@amoghap.8231 6 жыл бұрын

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

@Nocturnal194 6 жыл бұрын

No cats were harmed. Just killed.

@Planetkid32 Жыл бұрын

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

@purplehaze2358 Жыл бұрын

“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 Жыл бұрын

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

@akshitbansal6984 4 жыл бұрын

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

@NemJani 5 жыл бұрын

"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 5 жыл бұрын

one cat would power Norway for about 2.28 million years

@syweb2 5 жыл бұрын

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

@paulc83 5 жыл бұрын

Go up to someone and say that

@stavrosfay8454 5 жыл бұрын

Paul Chung I txted someone that

@Cheesus-Sliced 5 жыл бұрын

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

@IONProd 3 жыл бұрын

I love the units used

@Simon_General 2 жыл бұрын

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.

@risaradocz5440 Ай бұрын

Nerd/⁠ᐠ⁠｡⁠ꞈ⁠｡⁠ᐟ⁠\

@terjidjurhuus1917 4 жыл бұрын

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

@NewMessage 6 жыл бұрын

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

@imveryangryitsnotbutter 6 жыл бұрын

Not _as_ much, no. :/

@shr00m44 6 жыл бұрын

Wait a second here...

@jayfawn8478 6 жыл бұрын

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

@dasvidanya1171 6 жыл бұрын

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

@nicotti 6 жыл бұрын

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

@Androux. Жыл бұрын

Cat stock 📈

@siobhangraham7280 Жыл бұрын

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 Жыл бұрын

Indeed, but cat is much funnier than lambda

@Hello-lf1xs 3 ай бұрын

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

@captainskylink5894 6 жыл бұрын

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

@neilisbored2177 6 жыл бұрын

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

@kullingen6909 5 жыл бұрын

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

@bela_mnnng 5 жыл бұрын

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

@flatmarssociety4614 4 жыл бұрын

Its år

@awesomeninja1311 4 жыл бұрын

Noorwegen? Dat is nederlands!

@MissingPatel 4 жыл бұрын

Also don't nuke the cat

@coolian258 4 жыл бұрын

@@MissingPatel no its acctually dont turn cats into nukes

@projectmayhem6898 4 жыл бұрын

@@coolian258 Yes, turning a cat into a nuke would be ... cat-astrophic.

@ImFleer 3 жыл бұрын

Awesome drawings 😁

@hareecionelson5875 Жыл бұрын

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

@DragonOfTheSkies 6 жыл бұрын

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

@thomasraahauge5231 6 жыл бұрын

Cats are powerful :-D

@thomasraahauge5231 6 жыл бұрын

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

@El_wiwi7 5 жыл бұрын

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

@assmatronix 5 жыл бұрын

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 5 жыл бұрын

Not is, COULD be*

@katlin8474 6 жыл бұрын

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

@thumptherapist3816 6 жыл бұрын

Tearing the Universe apart one cat at a time

@medexamtoolsdotcom 6 жыл бұрын

No minutephysics probably just ate them.

@SergioEduP 6 жыл бұрын

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

@ultimaxkom8728 6 жыл бұрын

No rway! It can't be!

@ramoelleusrs6678 6 жыл бұрын

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

@MrLethalShots 2 жыл бұрын

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

@TheJuryan 2 ай бұрын

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

@X4Alpha4X 6 жыл бұрын

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 6 жыл бұрын

We need to get this comment up there!

@clon1122 6 жыл бұрын

That's an engineers problem not a scientist.

@G3rain1 6 жыл бұрын

Dyson's sphere.

@SandroAerogen 6 жыл бұрын

Dyson swarm of solar panels around the black hole.

@guillaumericard1233 6 жыл бұрын

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

@hubi0079 6 жыл бұрын

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 6 жыл бұрын

has this bond villian taken over Norway or something?

@hubi0079 6 жыл бұрын

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

@SamJNE122 6 жыл бұрын

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 6 жыл бұрын

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

@dugldoo 2 жыл бұрын

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 KZfaq. Thanks.

@WeissM89 8 ай бұрын

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

@nayutaito9421 4 жыл бұрын

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

@kerbodynamicx472 4 жыл бұрын

Nayuta Ito you can also harvest the mechanical energy.

@ynntari2775 3 жыл бұрын

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 2 жыл бұрын

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

@ynntari2775 2 жыл бұрын

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 2 жыл бұрын

Well humanity discovered a new way Solar cells

@abrahamblackmore3115 5 жыл бұрын

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

@FewVidsJustComments 4 жыл бұрын

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

@bradpeacock7872 4 жыл бұрын

This got me gd 😂thx for that

@Ronald98 Жыл бұрын

@@FewVidsJustComments LLLMMAAOOOO! 🤣😂🤣😂

@pkmntrainer8115 Жыл бұрын

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

@BambinaSaldana Жыл бұрын

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

@kv4648 2 жыл бұрын

Finally, an explanation to Tatsuya's powers

@atharvsharma7648 3 жыл бұрын

The guitar effect is so good

@0lloc0 6 жыл бұрын

*looks at my cat* Me:"well Lucy, i need energy, and its time for you to help with the bills" Lucy: *meows in dispair*

@oreole9608 6 жыл бұрын

Just dump your trash can into the black hole

@Questn 6 жыл бұрын

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 6 жыл бұрын

did not laugh

@Questn 6 жыл бұрын

who told you to?

@Alen1000Pro 6 жыл бұрын

Just a joke man

@Questn 6 жыл бұрын

same lol

@fusiontricycle6605 6 жыл бұрын

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.

@mediawolf1 9 ай бұрын

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.

@ChromaticCluck Жыл бұрын

Let’s say u have a fast spinning blackhole and 4 and a half cats. How do u harness the energy? Do u just put a days on sphere around it to take the heat?

@judassson 6 жыл бұрын

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 5 жыл бұрын

Step 5 ??? Step 6 Profit

@Alexander99602 5 жыл бұрын

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

@dariobarisic3502 5 жыл бұрын

@@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 5 жыл бұрын

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

@santiagorubio3987 5 жыл бұрын

Instructions unclear, powered Sweden instead

@Clangdon0148 6 жыл бұрын

anticatter?

@lunkel8108 6 жыл бұрын

good one

@Clangdon0148 6 жыл бұрын

Pootis Spencer Here thanks

@tardistardis8 6 жыл бұрын

@MegaBanne 5 жыл бұрын

Just anticat

@bigbadjohn10 5 жыл бұрын

Like it! :-)

@atulsinha7637 3 жыл бұрын

@2:31 mass should remain constant no? lost mass exists in the form of other particles(like oxidised compounds formed due to heat generated on its surface), heat is due to friction and other energy conversions(kinetic to heat)?

@stankfaust814 2 жыл бұрын

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

@iceman4382 6 жыл бұрын

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

@kidkangaroo5213 6 жыл бұрын

You're asking the right questions, my friend!

@HaloInverse 6 жыл бұрын

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 6 жыл бұрын

Ең жақсы KZfaq

The Unreasonable Efficiency of Black Holes

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