Quote:
Originally Posted by Bassnut
43%?, that implies black hole remnants last for ever. I read somewhere black holes evaperate altogether in something like 10*250 years?. 43% over what, a period of time?.
And, if information is not preserved, doesnt that stuff causality. I thought if time was reversable, you could recreate any state in the past?.
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Sorry about the delayed answer, i was delayed by the black hole called work.
As i said earlier the radiation emitted by blackholes is about 43% of the in falling matter.
Matter has two varieties matter and antimatter. When these twins meet they annihilate with 100% mass to energy conversion.
Now if matter crosses the event horizon without its twin antimatter, then the antimatter outside the event horizon will not be able to pop out of existence via the annihilation process. It then gets promoted from virtual particle to real particle and this is the essence of the Hawking radiation. The result of this loss of energy is the weakening of the black holes gravitational field as the energy of annihilation cannot occur within the blackhole. This is the 43% deficit. Now obviously as time progresses the gravitational field gets weaker and weaker until eventually the blackhole evaporates. (as the gravitational field gets weaker, less matter falls in so its a compounding problem)
Or so the thinking goes
