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https://xkcd.com/2844

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Created by the collapse of: [massive stars] [Florida limestone bedrock]

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[-] qooqie@lemmy.world 53 points 2 years ago* (last edited 2 years ago)

Don’t mean to be too technical but would the Big Bang be indirectly responsible for the formation of regular holes?

[-] RagnarokOnline@reddthat.com 10 points 2 years ago

Came here for this. Otherwise solid list

[-] palordrolap@kbin.social 22 points 2 years ago

If "Indirectly" is an allowed answer, as demonstrated by the answers after "Precious Metals", then the answer to "Are regular holes created by the Big Bang?" is not "No."

[-] msage@programming.dev 13 points 2 years ago

'Created by LHC' is the best one here

[-] Kolanaki@yiffit.net 10 points 2 years ago* (last edited 2 years ago)

Kid playing in the sand on a beach, screaming: "Moooom! I accidentally made a black hole again! Heeeeeelp!"

[-] randomaccount43543@lemmy.world 10 points 2 years ago
[-] PoastRotato@lemmy.world 13 points 2 years ago

Falling into a black hole is almost always fatal.

Almost??

[-] kometes@lemmy.world 9 points 2 years ago

It's entirely possible to live inside the event horizon. "Falling" is a problematic word.

[-] Teppic@kbin.social 2 points 2 years ago

I think you get spaghettified inside the event horizon?

[-] kometes@lemmy.world 6 points 2 years ago

Only if the tidal forces are large enough. For a small black hole, the tidal forces will kill you before you reach the EH.

See here for speculation on civilizations inside a massive black hole: https://www.academia.edu/10665641/Is_there_life_inside_black_holes

[-] jbk@discuss.tchncs.de 5 points 2 years ago

did hawking really argue that all infomation in black holes is lost forever? what about the hawking radiation? idk im not really into physics

[-] jalda@sopuli.xyz 10 points 2 years ago

For a long time, it was believed that Hawking radiation is thermal and doesn't carry information, except for the mass/radius/temperature of the black hole.

In 2004, Hawking conceded that, due to the holographic principle, information wasn't lost. The basic idea is that the infalling matter can gravitationally deform the horizon and thus modify the distribution of Hawking radiation from the pure thermal emission. And the interesting point is that the entropy of the black hole is proportional to its area and not its volume (holography), so the deformation of the horizon is sufficient to recover all the "missing" information.

[-] Teppic@kbin.social 4 points 2 years ago

Look up hairy black holes. Hawking basically pointed out a paradox.

[-] Spzi@lemm.ee 4 points 2 years ago

Falling in is only "definitely fatal" if it's too big. For all we know, black holes can be tiny and light. We can debate if you can still "fall in" one of those. Maybe the process is more like passing by, or some mote of dust sticking to your clothes.

[-] wahming 4 points 2 years ago
this post was submitted on 20 Oct 2023
382 points (98.0% liked)

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