The Density of a Black Hole

[darrenholcomb42]

@MyPitMind-Yeah, anything happening anywhere in the universe, how ever many light years away it is, takes that long before the light reaches us (or any beings anywhere) for us to know that it happened. So if a star 5 light years away blows up, it will take 5 years for that light of the explosion to reach us, by which time the explosion will be 5 years in the past from the moment we first see it.

[msnhao]

The video 0:37 is wrong

If the earth was 5cm across the gravity would be approx. 2551240 times stronger.

[MyPitMind]

well guys if Rigel or Canis Majoris ends up then propably we wont have time to think what tehy will create.also i wonna ask something if stars big like Beldegeuse explode we would see that about some years later cuz of the speed of light right?

[ComandanteJ]

is that par of a series, isn't it? anybody knows the name?

[MAXTHEASTARTES]

"How the Universe Works" Ima tell you, Alt F4

[SuperToasterCat]

Supernovas? Laaaame!

HOW ABOUT S00PER-D00PER-SPLOOPER-ZOOPLER NOVAS!!!

[iliveforthemoment]

wait no! i want to know more!!!

[AceionzHardstyle]

That's just a percentage of the power of Super Sayan 4 Gogeta!

[tepee2010]

@AceionzHardstyle haha dragonball GT for the win!

[elitebelt]

supernova-(pretty far away but can still see it)oh look a gllint in space :).

hypernova-(same exact place)OOOOOHHHHH SHIIIIIT!!!!!!!!!!!!!!!!!!!!!!­!!!!!!

[dakotarocks1234]

Wow wow wait I thought a black hole was like a short cut into another galaxy or something?

[ikevhawk]

@dakotarocks1234 No, that's a wormhole. And we don't even know if wormholes exist, they're just theoretical.

You wouldn't want to end up in a black hole.

[linkmaster717]

@PaulG85 yea that's what I thought

[ThrashMetalForces]

I like how the explosions in space have sound in this video.

[xxUrFaceLOLxx]

white hole- repels things

black hole- sucks in things

if they met what the hell whould happen?!

[FLOOPC]

@xxUrFaceLOLxx End up with a brown hole i think.

[punkyto892]

@xxUrFaceLOLxx Constant spin?

[darrenholcomb42]

DAMN universe, you scary.

[darrenholcomb42]

except for the super-duper-mega-ultra-bigger than the biggest thing ever and then some-nova's

[LyricsLuver152]

okay, now i'm afraid that the sun is going to explode...

[raraprm]

all i can say is "wow"

[Videalista]

I dont want to live in this universe anymore

[Zombiepwnage117]

Man in spaceship far away from Hypernova: Well gentlemen...

*outs on sunglasses*

We're fucked.

[ksekolo8reutis]

Intro:HOW THE UNIVERSE WORKS.

Speaker:To get an idea how big and tense a black hole is,IT WILL FUCK EVERYTHING UP.

[destroyer90z]

what happened to dying quietly?

[tomcia369]

When Chuck Norris gets a boner, here's what happens: 1:55.

[DavidFan7]

i remember when i would come home to watch the science channel in 7th grade 0.0

[FluffyDrummer100]

Hypernova: and thats how chuck norris was born

[GloinBane]

2:00 and then I pissed my pants

[PaulG85]

I thought the biggest explosion in the universe was a gamma ray burst.

[MegaHELLOproductions]

it would be AWESOME but scary if it was Canis Majoris, the largest known star. :3

[themostkoolest15]

relax guys !!! we will die after 5 bil. years!!! there is a lot of time !!! live your life

[LOSLOKAJO]

I wonder how much of this stuff is theory, and how much is real. man like to tell you a theory as if it were a fact

[Monti3395]

i dont know what else is even bigger than our space, it could be a Black Hole, We could be in the largest Black Hole ever!

[RobotHunter1234]

The black hole ripped of my dick.

[PotterSparrowDOGS]

this stuff gets me so scared!

[BeastieboyJOSH]

black holes gravity is so strong the not even light can escape

[toyota4runner1000]

why why would you want to create a black hole

[ZiiX845]

@toyota4runner1000 it isn't something that they want to create. it is created naturally

[toyota4runner1000]

@ZiiX845 they said the didnt have enough stuff to create it so that must have meant if the did they would

[GunsGamesandMORE]

(Chuck norris) "I'd say i got my moneys worth on that one!"

[darrenholcomb42]

You do realize I"m being a total racially insensative smart ass with my question right? I'm not talking about astronomy, just using the guise of astronomy.

[SchwartzStain]

im a puto

[tavi921]

God, i wish i had the accent of guys narrating documentaries. They sound sir-like.

[castlezfinest1]

damn universe, you scary!!!!

[phuturephunk]

Actually, I think Earth would need to be compressed even smaller than that to actually collapse on itself and become a singularity. 

[Aviatorsmith]

@phuturephunk Yes it has to.

[Haha666ish]

@phuturephunk what there saying is,a black hole the size of a golf ball but weighs as much as the earth with the same gravitational pull.Basically its a really really really really fuckin strong whirlpool

[Mrtripy100]

and that is how chunk norris's butt hole was made

[darrenholcomb42]

Do black holes give birth to white dwarfs? (that sentence is soooo wrong on so many levels).

[Aviatorsmith]

@darrenholcomb42 No.

[darrenholcomb42]

What about super-duper nova's?

[LordoKarnage]

@darrenholcomb42 Man, those things have nothing on super-duper-mega-ultra-novas.

[trultima]

@darrenholcomb42 oh, those are called derp-novas

[Mentasys]

@darrenholcomb42 : it's already so much force that it goes beyond imagination

[2ndcansuck]

That guy must have some like super-hyper-mega golf club D:

[Puffigs]

that...that...thats a cool golf ball^^

[agustinbs]

I just lost the jaw

[YoLninYo]

Hypernova's ain't nuthin but hype man! :-/

[silverrangerl2]

Poor Mom of the Black Hole ;O

[iiRaiD]

Why cant they just be nothing? Im so annoyed

[ThePokemonPizza]

1:55 looks like me having an orgasm XD

[flyforever1982]

I entered a black hole last night and I liked it

[vanillastien]

when one of them stars dies you know about it.

[EpicPinoy360]

search for a slut in the streets and piss her black hole w/ your super nova...

[TeamFortressgineer]

1:35 why tron derezz sound lol

[296192001]

......WOW...... JUST WOW hypernova makas supernova look like a fucking tictack

[Levitikai]

Mute the video during the hypernova and that will be like really witnessing it. The silent explosion.

[iDarksonic]

Man, the universe is scary.

[CodeStain]

By the way,there's no sound in space..

[Deadflier]

....

GET TO THE CHOPPA !!!

[bornandraisedghetto]

DAMN!



[182alasdair]

dam nature you SCARY!

[callawaydekluizen]

hmm i have my doubts, a supernova is responsible for spreading oxygen and carbon and silicium in the universe cuz when it explodes it launches it into space. Now with a hypernova why would that be any different. If anything the particels should be blown away more powerfull yet you need all the mass you have packed into a small place ( like a golf ball or something) to create such a density for a black hole. In this case you expell your mass. Seems unlikely

[lophilip]

@callawaydekluizen The particles of gas stay together (because of gravity) forming nebulas. If the nebula forms sufficent mass a star can form forming a solar system.

[callawaydekluizen]

@lophilip yes i know that, i just don't see what is so different about the hypernova.

[brutasflorelie]

the golf ball is the earth and the hole is the black hole

[poowagon1]

and it sets of a hyper nova? oh yea i got a bigger star...wen it dies it sets of an UBERHAXORNOVA!!! XD

[poowagon1]

i saw this on science channel yesterday :D

[kiwiblinks]

i need more!!!!!!!!!

[moira123451]

ok



[cybertron1000s]

Supernova - Damn big explosion !

Hypernova - HOLY FUCK!!!!!!!

[Makeupgirl2522]

woowww man



[rokyfox]

Is that a Chuck Norris fart?

nope, Chuck Testa

[gouskin]

IT'S NOT ENOUGH

[Razor95321]

Black holes already remain from the collapse of stars which have more than 3 sun masses!

[Ricku571]

Oh no!!!! Now the're are things making things!!! Even worse!!! the're hyper!!!

[PigsCanFly99]

Gravitational gradient is so large approaching a black hole (that) the difference in weight between "radially adjacent" atoms is large enough to over-come inter-atomic forces. Amazing. This is what tears you apart as you get drawn in. It's the variation in gravitational attraction with altitude. Something we have trouble measuring here on earth. Near a black hole this variation will tear you and your instrument apart at the atomic scale. Ultra-Shreddies.

[PigsCanFly99]

it's not "inside" the star - it is THE star - which has concomitant gravity. Important to maintain precision in these matters - scientific accuracy. Give em an inch and they'll take a mile.

[ShadowiGeneral]

So I'm guessing a hypernova is the birth of a new galaxy? Because a hypernova would make a supermassive black hole, which is in the center of many galaxies.

[Smonjirez]

@ShadowiGeneral No. A hypernova creates just a normal black hole with a mass of 10-100 times the mass of our sun (take into account that a hypernova blasts away a large proportion of the star's mass). A supermassive black hole in the center of a galaxy has a mass of ~100 billion times our sun. So that's around 1.000.000.000 times heavier.

[ShadowiGeneral]

@Smonjirez Hmm, so have we not yet figured out how a supermassive black hole is created?

[Smonjirez]

@ShadowiGeneral Erm no that is far from reality. How a supermassive black hole is created is very simple; a black hole swallows up matter. In early galaxies a galaxy existed mostly of hot gasses. When a black hole was created within the dense region of this enormous gas-gloud, a black-hole formed which kept on getting heavier by swallowing up the surrounding gasses. But enough matter was left for all the stars to be created.

[mariopianist]

Btw if you were sucked into a black hole, you would be pulled apart atom by atom until you were gone

In other words, you kind of vaporize because nothing is left of you

[Razor95321]

@mariopianist There actually is, first it pulls you apart, thats right, but your >mass< is still there, the problem is: nobody can check it because nobody can see what happens in a black hole. In a black hole, space and time "stop existing" (singularity).

[mariopianist]

Just saying this,

Whenever a star explodes, say that I'm talking about a massive star, some of that mass of said star is left and is pulled toward a single point, in which it starts spinning (gravity causes rotation) so fast that it pulls everything toward it in a single point

Thumbs up if it helped a bit

[chodaboy51500]

@mariopianist Gravity does not cause rotation. It is the conservation of angular momentum that causes the rotation to speed up. Like an ice skater pulling her arms in spins faster. And it isn't the spinning that pulls everything in, the material is compressed by immense gravitational pressure of the stellar core, so much so that even nuclear forces cannot resist further compression.

[freakehh]

damn universe you scary

[dekippiesip]

I have derived a formula for the density of a black hole. It is: 3c^2/(8*pi*G*Rs^2), with Rs the radius of the event horizon, c the lightspeed and G the gravitational constant. The density isn't necessarily big, the smaller the black hole is the denser it is.

[Chuckalakala]

The universe scares the SHIT out of me

[OculusMachi]

@Chuckalakala that's because you need to know more :D

[iamtheone745]

@Chuckalakala get used to ıt you lıve ın ıt hahah hey waıt so do ı SHIT!

[lazychimp123]

Any logical person can see that this theory makes zero sense. After these stars explode and throw all their matter into surrounding space, there's magically still enough matter where the explosion happened to collapse itself into something so dense that light cant escape? I think when we do figure out what black holes are we'll laugh at all this shit. Should look up their reasoning behind why things shoot out of black holes (where light itself cant escape), it's pretty funny.

[Cabuncle]

how entertaining that some people always come up with new names for things that are already named...

btw, isn't the "biggest" explosion a pulsar which creates a new galaxy?

and isn'T it already possible for stars with 8times the mass of our sun to end up as a black hole?

and how should atoms collapse?do they become quarks again or what do they mean?why shouldn't the atoms build a new, much heavier element by overcoming the strong force by using nothing but gravity?

[4evrdrumin]

1:55 CHUCK NORRIS IS BORN!

[TheAiraairaairaaira]

i wish i was born to be an alien. and i will visit you guys.

[StealthStriker94]

Pretty lights.....

[L3G3ND125]

1:55 Insert the Rage Guy!

[tuesday2998]

NUCLEAR BOMBS ARE CREATED WHEN ANTIMATTER AND MATTER FUSE

[redwallcools]

@tuesday2998 I'm sorry to break it to you, but that is %100 bullshit.Fusion bombs (nuclear explosions), basically fuse hydrogen together to form helium, releasing immense amounts of energy.

Atomic explosions occur when you split Uranium atoms into two separate atoms, releasing a few neutrons and some energy in the process. These neutrons collide with other Uranium atoms, causing them to split as well; this causes a runaway chain reaction.

Humans don't have antimatter bombs yet.

[QuantumRelease1]

@tuesday2998 ಠ_ಠ

[MrJohnDevour]

It is ironic that a black hole is the perfect opposite of the definition of a real hole...

[omer704704]

i want to go inside a black hoe!!!!!!!!!!!!!!!!

[frealmike]

There's a supernova but there's also a hypernova? What's next?! The ultranova?!

[Wiintendoh]

In Soviet Russia, hole fucks you!

[INMATE2468]

But the more its density the faster it collapses right? Meaning it would continue to collapse infinitely right?

[larey11D2]

Videos like this creep me out but i love them :D

[gwendance]

The denser an object, the more gravity it has. By the time the Earth was 5 centimeters wide, it had enough gravity to be a black hole.

[hearTelus]

it is also the birth of a gamma ray burst.. and atm there is one pointing at us :) but hes not going to hit us in the next century

[shafsaw]

when i saw this on tv i ad to close my eyes when it was crushing earth

[solorathain]

You can fuck any hole . . . but you can't fuck a black hole . . .

[LFO3001]

dude that golf stick had to be sooooooooo dense im telling you

[IvanderHaisley]

sound does not propagate on space o.O

[danmark24]

oh i hate ads :P

[LEGITDAKINE]

I love this kind of stuff. But i i really don't like school science.

[699backstab]

I thought god did it

[ScientificExploits]

Actually, if the black hole were to be sucking in a whole lot of matter it could be very very loud. As long as you were in the matter.

[chaohlin]

EPIC!!

[gwaihir2685]

My question is:

What is the purpose of a black hole?

And please don't say the idea of "purpose" is not relevant to science....

[danielpop]

@gwaihir2685 If your talking about the function of balck holes in the universe, well it depends the type of black hole some can tear apart entire galaxies and eventually meet with other black holes and then make new and fresh renew galaxies, something like that

[oldschool106]

and where is the rest?of this documentation?

[mmw818s]

@oldschool106 Well it's on Netflix if you have that =P

[gwendance]

@oldschool106 good point

[gwendance]

@oldschool106 good point

[StanOfGB]

@oldschool106 on DVD.

[clarran92]

@oldschool106 The name of it is: How the universe works

[oldschool106]

and where is the rest?

[wuzzuppp3452]

funny thing is you cant here sound in space :P

[XDslottXy]

makes me feel small and powerless

[JNexusD]

Am I the only one who this watching this stuff is scary? Haha!

[NLwino]

Sorry but this vid is so inaccurate... And it badly explains the density of black holes. And what black holes are them selves. Earth compressed to a golf ball? Wrong. A black hole with the mass of the earth would have a event horizon the size of a golf ball, yes. But the actual mass of the black hole would be in the tiny spot in the center of that golf ball, called the singularity.

[TruthMovement330]

@NLwino To laymen, explaining the "black hole" as the diameter of the event horizon is easier to understand in in a 2 minute video. A singularity is a zero dimensional geometric point. Zero dimensions means zero lengths, zero mass, zero volume. Can you really call that a physical "thing"? Would laymen really understand? Really? If you call the singularity a "thing" then the only other option is that it's non-physical. Just an idea. An idea that will rip you in half over and over and over......

[NLwino]

@TruthMovement330 BTW a singularity might have zero dimensions, but not zero mass. Else it would have no gravity. But that is only according to the relativity theory. If we use quantum mechanics to explain it, it does have volume and thus more dimensions. But no one has been able to combine the relativity theory with quantum mechanics yet so we don't really know what the singularity really is. But just know its there and that its small, very small...

But I still think this video is a bad source.

[AIRburst95]

that 2:11 minutes could be shortened by 2 minutes by one word.... INFINITE DENSITY

[FoxyBearism]

1:54 IMA FIRIN MA LAZAR

[sedjetra]

It's a very cool video, I wanted to upload it, but it's good it's here! Although american narrator sounds much better than english one:\

[sethy1]

I want onadem blak holz dude



[Firestar431]

2:04 now thats what i call nuclear explosion

[atmatheprophet]

DAMN NATURE YOU SCARY!

[sxemola]

I thought there is no gravity in space? how dose gravity crush them? Do they make there own gravity due to there mass size?

[ultrabeing1]

@sxemola Well when stars (bigger than ours) fuse the hydrogen inside of them into larger atoms like iron they stop producing light and begin to fall into its self due to the heavier fused atoms like irom and with all this mass focused into one point the gravitational affect around them is so strong it can even suck in light "black hole" also all matter has gravity not just the earth

[VBEducation1]

@sxemola it didnt say that in space there is no gravity. there is gravity in stars, people, planets, everything - except space. space is basically nothing

[Gr8civilisation]

It was chuck norris who at the black hole...

[oedan123]

fake la

[MrUnickgodess]

the earth is full of idiots :))

[kamikazeboy123]

man,God really knows what he's doing.thank god im praying for him.=)

[MunkJavel]

@kamikazeboy123 ... seriously? you are a very VERY primitive boy

[97epicman]

i want to see a hypernova (from a safe distance)

[kratos3111]

Cool i love hyper novas  :)

[legoman4422]

Cool I love black holes.  :)

[aNdReSkKkK]

@legoman4422 did i understand this in the wrong way?

[1UpMmushroom]

@legoman4422 Which KIND of black holes? >.>

[timwitt94]

@legoman4422 haha wow i definately dont

[RegularTommy]

Cool.i love space.

[icarosilva16]

Also a blach hole dies,becuse he loses radiations,is a so slow proces that it needs 1/hundred and hundred zero years..but he too is not eternal....

[9493760]

HOW DOES AN EXPLOSION CAUSE CONTRACTION ? MAYBE WHAT WE SEE AS A HYPERNOVA ISN'T AN EXPLOSION BUT A RELEASE OF ALL PARTS ABANDONING A HUGE CONTRACTION ?

GIANFRANCO FRONZI AUGUST /16/2011

[Lehcs1]

@9493760 not all of the particles shoot out. only the ones left contract.

[Toaofdead]

11 people got sucked by a black hole.

[deepakjindal070]

whats next after blackhole?? what happen when a blackhole die??

[VBEducation1]

@deepakjindal070 i have noooo idea....lol