Science Memes

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That explains a lot (mander.xyz)

submitted 3 months ago by [email protected] to c/[email protected]

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[–] [email protected] 11 points 3 months ago (8 children)

What is the minimum size until it will grow faster than it evaporates? And can we make one if we try really hard?

[–] [email protected] 1 points 3 months ago (3 children)

I know a little bit but I'm not an expert.

My understanding is hawking radiation will produce a rate of mass evaporating that's fairly consistent over galactic time scales, so you just need to make sure the black hole is big enough to "suck" more mass in via gravitational attraction per given time period than evaporates through hawking radiation.

[–] [email protected] 2 points 3 months ago (2 children)

I think the bigger they are faster tge evaporate. They lose mass at some ratio between their surface and mass.

[–] [email protected] 2 points 3 months ago

Exactly the opposite. The bigger one is, the less it evaporates. Time required to evaporate scales with Mass^3

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