Anonymous at Fri, 7 Jun 2024 17:20:43 UTC No. 16220143

>>16220140
Big bang

Anonymous at Fri, 7 Jun 2024 17:21:34 UTC No. 16220144

>>16220140
I dunno

Anonymous at Fri, 7 Jun 2024 17:26:15 UTC No. 16220158

>>16220140
They wouldn't annihilate, they would just merge into one bigger black hole. In a black hole described by GR a black hole has a singularity, which has an infinite density and so isn't composed of anything that could be called anti or normal matter. So it doesn't matter. Many people believe the singularity is not physical and some future theory will show that it has a finite density, in which case it's physics is unknown. But even if that matter could annihilate into light, the photons couldn't escape and the black hole would still be as massive as before.

Anonymous at Fri, 7 Jun 2024 17:27:40 UTC No. 16220162

>>16220158
Wait, wouldn't it mean the black hole would be twice as massive?

Anonymous at Fri, 7 Jun 2024 17:28:54 UTC No. 16220168

>>16220162
I mean the combined mass, yes.

Anonymous at Fri, 7 Jun 2024 17:30:17 UTC No. 16220170

>>16220143
There's no sound in space dummy

Anonymous at Fri, 7 Jun 2024 17:57:08 UTC No. 16220194

>>16220158
Matter in orbit around a black hole ultimately falls in because of friction with other matter, right? If there was an isolate particle, in orbit inside the event horizon, it would never actually fall in toward the center, would it?

Anonymous at Fri, 7 Jun 2024 18:18:48 UTC No. 16220229

>>16220158
Interesting possibility, yes. Too bad we can't even gather enough antimatter to do much else other than "look" at microscopic dust.
well, at lest it seems it doesn't have negative mass/gravity. Better than knowing nothing, I guess.

Anonymous at Fri, 7 Jun 2024 18:19:49 UTC No. 16220231

>>16220170
kek, nice

Anonymous at Fri, 7 Jun 2024 18:25:22 UTC No. 16220248

what is it about black holes that makes them the number one most popular popsci topic of discussion amongst the brainlet soience fangoys?
is it the comic bookish aspects of the spectacular, unrealistic and completely non disprovable conjectures which go along with the topic that make black holes so popular amongst the scientist posers and wannabes?

Anonymous at Fri, 7 Jun 2024 18:42:15 UTC No. 16220292

>>16220140
you would get a -1000 degree sun made of ice

Anonymous at Fri, 7 Jun 2024 18:51:20 UTC No. 16220317

>>16220140
Nothing interesting. Black holes are not made of matter or antimatter. They're not things in the usual sense of the word. They're just regions of spacetime that are bounded by an event horizon which, due to the curvature of space in the region, looks spherical. Throw antimatter into a black hole and you just get a slightly larger black hole. No annihilation can occur because there's no stuff there.

Anonymous at Sat, 8 Jun 2024 07:59:49 UTC No. 16221527

>>16220317
If there's nothing there. how can they have mass?

🗑️ Anonymous at Sat, 8 Jun 2024 08:18:01 UTC No. 16221540

>>16220158
It has to be composed of something it's an object with mass

Anonymous at Sat, 8 Jun 2024 08:22:11 UTC No. 16221546

>>16220140

Events happening inside a black hole are no longer part of the flow of time from the rest of the universe.

Anonymous at Sat, 8 Jun 2024 08:25:01 UTC No. 16221550

>>16221540

Mass and energy are the same. You could make an artificial black hole by concentrating a critical amount of light at a single point and would be indistinguishable from a stellar black hole.

Anonymous at Sat, 8 Jun 2024 08:27:45 UTC No. 16221551

>>16220317
That's wrong, all the mass exists in a singularity. It doesn't magically become non-physical

Anonymous at Sat, 8 Jun 2024 08:29:26 UTC No. 16221553

>>16220194
It will fall in because the velocity required to hold a stable orbit is in excess of the speed of light
In fact the nearest stable orbit is OUTSIDE the event horizon, iirc ~1.5x for non-spinning black holes and closer for Kerr ones

Anonymous at Sat, 8 Jun 2024 08:37:41 UTC No. 16221565

>>16220248
>STOP TALKING ABOUT SCIENCE ON THE SCIENCE BOARD

Anonymous at Sat, 8 Jun 2024 08:54:33 UTC No. 16221581

>>16221565
>ad hoc mathematical models to describe some theoretical edge case
>STOP QUESTIONING MY BASEDENCE™ CINEMATIC UNIVERSE

Anonymous at Sat, 8 Jun 2024 09:12:40 UTC No. 16221610

>>16221581
What exactly is ad hoc about General Relativity? lel.

Anonymous at Sat, 8 Jun 2024 09:22:31 UTC No. 16221624

>>16221610
the singularity

Anonymous at Sat, 8 Jun 2024 09:24:55 UTC No. 16221629

>>16220140
Pretty much nothing, whatever explosion that would result in, it would be swallowed by the hole, it would just grow basically