Extreme Physics of Black Holes - Part 2

This video goes into the physics associated with black holes. We know very little about what happens to mass and energy inside a black hole, but the boundary, called the event horizon between inside and outside is well defined as is the phenomena near that boundary. We investigate that here.

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Howto & Style

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• Astronomy
• Physics
• Astrophysics
• Education
• Lecture
• Science

[grimysparrow]

If black holes evaporate over time... would the matter the black hole had consumed be returned to the universe? Or would it be something different? Could super-massive black holes that are in the center of galaxies have formed from super-massive stars that may have ignited at a very early time after the big bang? There would have been a huge amount of hydrogen in a much smaller space. Cool video too.

[jas2754]

Thanks. Over time the matter and energy contained within the black hole would be recycled .... that is returned to the Universe.

On the supermassive black holes in the center of galaxies... yes they could have come from a gigantic star because of the presumably high density of materials available at the center to allow stllar formation. Or it could have from from an early black hole( fromed soon after the big bang).. that just kept growing given the ample materials in the center

[COMEONalreadytaken]

5 stars

[jas2754]

Thank You

[38greenfield]

I have a blue pencil box!

[FilmPA]

So black holes take 66 billion years to evaporate. Great! We are FUCKED!

[lordgen86]

this is way outdated

[CRASDFGH]

so how old is our black whole... will it just stop one day and send us orbiting in to nowhere space or something...cause that would suck...and if you can make a black whole less than 5 solar masses why are people saying the LHC will make a black whole

[shanks414]

Dr.John, I would like to ask two questions. (a) Can we be 100% sure that light is indeed the fastest thing in the universe? (given that our understanding of everything in science has regularly changed over the decades/centuries). How impossible is it that 50 years from now, somebody finds something faster than light?

(b) If (a) happened, what is the implication of that in how we understand black holes?

Many Thanks.

[shanks414]

Dr.John, I really appreciate your effort in sharing this as a video, and more so for answering comments by people. Thanks a lot.

[cookaboorra4]

10+ = EXCELLENT!!

After having seen it some times, and thinking about it is here said, I wonder if the normal time-space path is cut in two different destinies, and time is frozen, matter sliding towards redshift, it is possible that things inside melt into an appropriate stadium of matter, as if they were "cleaned" from their peculiarities, to resurrect as a part of the black hole itself, having left free the Gravitational Force anywhere else?