ed84c Posted February 11, 2004 Posted February 11, 2004 Can somebody please explain the maths (and physics) of black holes evaporating (in simple terms)
JaKiri Posted February 11, 2004 Posted February 11, 2004 Black holes (through a variety of possible methods, I can't remember which one's in vogue) emit subatomic particles. Obviously, this is a loss of mass, so they gradually get smaller.
ed84c Posted February 11, 2004 Author Posted February 11, 2004 What subatomic particles; bosons, positrons? and why dont these particles fall into the holes itself
mooeypoo Posted February 16, 2004 Posted February 16, 2004 Uhm excuse me I might sound stupid but aren't black holes supposed to have such a huge gravity that NOTHING "escapes" their 'grab' ? What's the basis of this theory?
Hades Posted February 16, 2004 Posted February 16, 2004 i dont see why they would collapse considering that emissions from a blackhole are composed of roughly 10% of the mass taken in. Emitted as radiation thats detectable... im puzzled why they would lose their integrity under the hypothesis that blackholes can almost expand endlessly. im very interested in this subject ! if anyone has concrete data concerinng it please post!
Neurocomp2003 Posted February 16, 2004 Posted February 16, 2004 its all theoretical but what jakiri posted is what current understanding tells us
Ms. DNA Posted February 16, 2004 Posted February 16, 2004 I Googled "Hawking radiation" and found a couple of sites that might answer the question: http://math.ucr.edu/home/baez/physics/Relativity/BlackHoles/hawking.html http://casa.colorado.edu/~ajsh/hawk.html
Hades Posted February 16, 2004 Posted February 16, 2004 oh, so taking into consideration that if nothing enters their event horizon to 'feed' the singularity, then it will eventually spiral down to nothing.
Crash Posted February 16, 2004 Posted February 16, 2004 Is there a point were a black hole becomes so big that these particles etc cannot escsape BTW i want the name black hole disposed and a new name in its place
Neurocomp2003 Posted February 16, 2004 Posted February 16, 2004 I think the term black hole came because of the term black body radiation(BBR). What would you like to call it? vacuum sucker?
JaKiri Posted February 16, 2004 Posted February 16, 2004 Neurocomp2003 said in post # :I think the term black hole came because of the term black body radiation(BBR). What would you like to call it? vacuum sucker? It was a term coined in the earlier part of last century by John Wheeler.
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