2006-07-27 15:42:05 · 8 answers · asked by aggies_2011 2 in Science & Mathematics ➔ Astronomy & Space
They 'evaporate' through Hawking radiation, but this is very slow:
Black holes get the energy to radiate Hawking radiation from their rest mass energy. So if a black hole is not accreting mass from outside, it will lose mass by Hawking radiation, and will eventually evaporate. For astronomical black holes, the evaporation time is prodigiously long - about 10^61 times the age of the Universe for a 30 solar mass black hole. However, the evaporation time is shorter for smaller black holes (evaporation time t is proportional to M^3), and black holes with masses less than about 10^11 kg (the mass of a small mountain) can evaporate in less than the age of the Universe. The Hawking temperature of such mini black holes is high: a 10^11 kg black hole has a temperature of about 10^12 Kelvin, equivalent to the rest mass energy of a proton. The gravitational pull of such a mini black hole would be about 1 g at a distance of 1 meter.
2006-07-27 15:44:40 · answer #1 · answered by Charles G 4 · 1⤊ 0⤋
Hello, the answer is no.And also there is no need for fear of black holes.They dont just wander around the galaxy sucking up everything in sight.The star that created the black hole to begin with does not change the orbit or path it was on when it collapses into a point.In other words if the earth all of a sudden shrunk to the size of a pea it would still have the same mass just a different volume therefore the moon would continue orbiting the tiny earth on the same path it was before the collapse.Now an asteroid or metorite thats path intersected with the shrunken black hole earth would be in danger when it entered the point of no return(event horizon). Hope this calmed your nerves a bit.Good day!
2006-07-28 00:28:14 · answer #2 · answered by isaac a 3 · 0⤊ 0⤋
I knew this one black girl like that, she would always insist that I buy her an expensive dinner, or else I could not hit dat. Then this one night I didn't buy her any dinner and she died...oh wait...ohhh, you said black holes...my bad.
2006-07-27 22:53:10 · answer #3 · answered by drpedigo_2000 2 · 0⤊ 0⤋
no black holes are giant holes that sucks everything thats in its path its im possible for u to escape so it will stop when it stops
2006-07-27 22:47:46 · answer #4 · answered by ssbbrulz 2 · 0⤊ 0⤋
Ask Captain Picard or Maybe Data.
2006-07-27 22:45:26 · answer #5 · answered by Jacob A 4 · 0⤊ 0⤋
No, they just get really lonely, and ending up lying dormant until something yummy comes their way.
2006-07-27 22:46:54 · answer #6 · answered by Spex 3 · 0⤊ 0⤋
No they dont die.
And they are not fed
2006-07-27 23:39:02 · answer #7 · answered by Dr M 5 · 0⤊ 0⤋
if so, what happens if they feed too much?
2006-07-27 22:47:26 · answer #8 · answered by Anonymous · 0⤊ 0⤋