The Hawking Paradox (Part 2)

[imakesureulol]

black hole is hell

[boiotreturns]

information is lost

[BayouBluesMan]

all these great physists go to a fake guys house.... right....

[GShock112]

I can't for the love of me understand how positive matter escapes the black hole whereas even light can't escape it.

Furthenmore if the antimatter gets swallowed and the future of a black hole is self annhilation, how can black holes then grow up to the size of those supermassive black holes of the kind that dwell the center of spiral galaxies?

Anyone care to explain?

[rkyeun]

@GShock112

Matter and antimatter are both massed particles. Antimatter just has an opposite charge and mutually annihilates matter to produce light. Feeding mass to a black hole increases its mass. Even if they do annihilate somewhere inside the black hole, the energy is still inside.

[jaimesthesaint]

@GShock112 In general relativity, it's not just matter that warps space, but all forms of energy. So if a matter particle were to meet an antimatter particle inside of a black hole, both particles would be annihilated, as usual, but their energy would still be there, so no one on the outside would notice any difference.

And black holes evaporate essentially through quantum tunneling. Leonard Susskind explains the process in more detail in his book, The Black Hole War.

[GShock112]

@jaimesthesaint

Not clear. Nothing escapes a black hole and this includes positive matter. The way the doc says negative matter gets in and positive matter (virtual particles) gets out. This is IMPOSSIBLE because nothing escapes the pull.

If all black holes evaporate instead of growing, as you said, how were these supermassive black holes formed? BH should tend to become smaller and evaporate then how about the supermassive ones? It means they used to be even bigger?

[jaimesthesaint]

@GShock112 From the point of view of someone outside the black hole, the information never actually crosses the horizon. It gets smeared across the horizon and stays there until it gets released as Hawking radiation much much later.

And all black holes give off radiation based on their temperature (which is inversely proportional to mass), but currently all stellar-mass black holes are much colder than the surrounding space, so they're all growing. They won't start evaporating for a long time.

[GShock112]

@jaimesthesaint

NOTHING escapes a black hole once the horizon is passed.

If you talk about "around" the BH then I might understand (I might!) but if you talk about information crossing the horizon, that's impossible bc of this GRAMMATICAL word: "nothing".

That's why I fail to understand.

[jaimesthesaint]

@GShock112 From the point of view of someone falling into the black hole, the horizon is nothing special - they just fall right through - but from the point of view of someone who stays outside the horizon, they disintegrate and, after a very long time, are given off as Hawking radiation. The apparent contradiction doesn't matter. The guy inside can't tell you he's alive b/c no information can leave the BH, and you can't tell him he's Hawking radiation because he will have hit the singularity.

[GShock112]

@jaimesthesaint

Jesus Christ maybe I can't explain myself. How can the BH EMIT and RELEASE or as you say "give off" if NOTHING, NOTHING escapes a black hole?!

The Gas jets at the poles of a rotating BH do not come from the BH but from its vicinity because of magnetic fields that the rotation (the TWISTING actually) of space time has around the BH but NOTHING escapes the BH that's why I don't understand this radiation. How can something that lets nothing escape EMIT something??!!?!?!?!?

[jaimesthesaint]

@GShock112 Through the same process that allows the sun to fuse hydrogen, even though its core is too cold: quantum tunneling.

When you apply quantum mechanics to black holes, you find that a horizon can't be a perfectly smooth surface - it has to fluctuate, and some of these fluctuations may be big enough to pinch off a tiny piece of the black hole.

When the temperature of space drops below that of black holes, the tiny amount of radiation they emit will start to be more than they absorb.

[GShock112]

@jaimesthesaint

Nothing escapes from INSIDE the event horizon hence the radiation can't come from inside. It must come from outside, in the proximity of the EH but there's NO WAY it can can strip something from inside the EH bc the singularity inside has an unparalled strenght of attraction.

How can a BH evaporate if it keeps eating matter and nothing can escape... it doesn't make any sense. I really can't understand.

[jaimesthesaint]

@GShock112 Because quantum mechanics demands that matter CAN escape. It's not very likely for an individual particle to escape, but if given enough time, it does happen.

[GShock112]

@jaimesthesaint

Even if a particle escaped, it would escape the gravitational attaction because of magnetism and because of angular speed but these things can only happen OUTSIDE the black hole. For nothing, literally nothing escapes a black hole.

I wish we had more than 300 characters to talk about these things.

[jaimesthesaint]

@GShock112 I don't really know how to explain it because I haven't taken any general relativity or quantum mechanics classes yet, but the consensus among physicists appears to be that black holes evaporate.

[jaimesthesaint]

@GShock112 If you want more detail, I recommend reading The Black Hole War.

[xTheBestJokex]

@GShock112 Thermodynamics demand that Info escapes from the Black Hole, yet it has an attraction that is greater than that of speed of light, thus nothing can escape from it once the Event Horizon is crossed, some people have tried to explain how physical information could espace a black hole through quantun gravity and string theory, but you wrong in one thing, Black Holes desintegrate because they have so much density they crush their very own mass, thus erradicating their own density.

[11thDim]

I have a theory?

Thanks to Stephen Hawking for amazing work.

Blackholes have a singularity and eventually shink into non existance.

Similar to how life on earth happens. It's created and it expires.

We humans have so much in common to blackholes.

Birth and death are apparent in both cases.

The massive density of a blackhole is equal to the density of non existant life.

It appears to me that the 11th dimension and blackholes are very closely linked.

[taigahalla22]

@11thDim ummm well black holes are objects so immense that they absorb everything near it, even light. wouldnt the density of non-existant life have no density because it doesnt exist?

[11thDim]

@taigahalla22

Blackholes could be a pool for expired life forms, waiting to be pulled back into meaningful existance.

The event horizon holds the positive energy information particle, the blackhole holds the negitive particle where

Information is lost. One is useless without the other. Just a theory.

[nexenta]

Of course! We are just fishes in one aquarium. We can go around, live, breath and die.. We can understand what is the "air" we are breathing and see the "lights" outside the glass... but still refuse to accept that this aquarium has an owner.. Where soul is going after life that is what happens to energy running trough a black hole. One equation named God.

[clovelywindheaven]

imagine if hawking didnt have motor neurone disease....(not to say he hasnt or cant do anything incredibley substancial) im sure hed of achieved and attained monumentously greater amounts of scientifical advances in his research..

[FieryTigerWolf]

imagine the possibility of his thinking if he took lsd it opens up your mind makes you think deeper and harder than you ever thought you could imagine that with mr. hawking

[GShock112]

Genius can work out maths without writing ... unbelievable. 

[ecaepevolhturt]

@GShock112 Forget mental arithmetic he was doing mental algebra, inspiring.

[FreeeeS]

damn I saw that S=c^3A/4hG formula at my physics class in University about entropy 0_o

[TAz69x]

How to pass your Creation Science final exam:

"God 'dun it!"

PERFECT MARKS!

[CapitanoGUC]

evry huan being has got his own black hole to do chack out ...:-D

[TranceMasterXXX]

Is he a savant?

[booksandleaves]

how were those students able to understand him?

[david1550123]

@booksandleaves they propably speaked hawkings... do u speak hawkings?

[chris38885]

I once went down on a girl and thought I was going to get sucked into a black hole

[audiojunkiehu]

"Stephen's ALS has progressed much more slowly then with almost anybody else

Time does move slower, if you believe:-)

[finemofok]

Time is a man made measurement, Time is distance times speed the only thing that could stop time and light is a black hole.

I read the book.

[sthral]

@finemofok

Uhm... Time is one of the fundamental dimensions of the universe...

and time, distance and speed are intimately related... not sure if I understood thoroughly what you meant.

[gomogomopro]

@finemofok time is distance over speed..

[ProoMaaaas]

@finemofok Light can be stopped in laboratories, tho only for a short period of time (yet). news.bbc.co.uk/2/hi/science/na­ture/3308109.stm

[graboy12345]

@finemofok What book? I'm interested.

[ROBOTCHICKEN63]

@graboy12345 A brief history of time, it's a great book if you understand physics, i'm reading it at the moment

[dari0h]

@finemofok time could stop if everything cooled down to absolute zero. Than there would be no movement (speed)

[equallyeasilyfuqyou]

the real question is..what is time exactly?

[tepanec]

time does not stop,just slows down or runs backwards

[SirPwn4lot]

Time doesn't run backwards, time is exactly stopped for light. It can slow down.

[kieran360]

8.52...............why are his hands there?

[dekkom10]

great video thank you

[Chewy427]

hang on a minute, Hawking DEVELOPED an ability to imagine 4D objects? woot teach me too xD

[Chilledtea]

But then he wouldn't be unique :P

[Chilledtea]

If you're going to post such trash, do it elsewhere.

[AdiZetaFunction]

Who created the trash?

[Chilledtea]

@AdiZeta: The comments. I don't think people should be posting such trashy comments.

[HEROofANGELES]

STEPHEN'S A.L.S. - Has no doubt been thwarted by his own belief that it would not stand in the way of his quest for knowledge. The power of the mind to heal the body is becoming more and more effective & frequent as our collective understanding of the relationship between the body & the mind evolves.

[SilveradoNL]

@HEROofANGELES just because his A.L.S. has not detroyed his body, as soon as it has done with others does not mean his mind, is able to heal his body.

He still has the dissease.

he is still in a wheelchair.

The disease is getting worse each year.

How can u call this:"The power of the mind to heal the body"

oh yeah, and about 15% of the A.L.S. affected people reaches the age of 65+

So its not a wonder he is this old, just luck he doesnt have progressive A.L.S.

[36hcupsizeandgrowing]

@HEROofANGELES i believe that the human spirit is also at play here

[Dijkie1337]

Thanks for sharing. Hawking rules.

[tygerdavid]

@Dijkie1337

Congrats on your "reading" skills.

[astafford3142]

I think you are right, but Hawking derived it using Quantum Mechanics.

[clumma]

I thought that equation (for the entropy of a black hole) was due to Bekenstein!

[clumma]

Well, I don't want to infer racism. There are a lot of reasons this sort of disparity can occur. If I were to speculate, I would guess there is reverse discrimination regarding Hawking's disability... that strikes me as the most likely explanation if Hawking has undeserved notoriety.

[clumma]

(continued to bypass 500 char limit)

Einstein's crazy hair probably earned him some points also, though of course it is hard to overstate his importance. However, Gell-Mann did point out that images of Einstein are usually from the Princeton period, when he was no longer producing breakthroughs.

[fatsomamacheese]

The mere fact that you have to mention that he's a jew at every possible point shows your horrible lack of objectivety.

Go suck on a dead dog's nose.

[fatsomamacheese]

Good comeback, for a non-jew

[Dimethyltryptamine2]

arrogant fuck

[bminternet43]

great

[teddyterrorist]

thank you for posting