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UFO
13 Apr 2012 08:06


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@nobody  Cand vorbim de densitate incercăm să cuantificăm o mărime constantă &#537;i nu una variabilă. Ideea de densitate se aplică unor volume în interiorul cărora densitatea este constantă sau cel pu&#539;in are varia&#539;ii mici. In caz contrar specificam ca este vorba de o densitate medie.

Since for Schwarzschild black holes the radius of the black hole is proportional to its mass you obtain finally $\rho\propto 1/M^2$, so the heavier a black hole the smaller its density. But again, this provides a highly misleading picture of the mass distribution within the black hole. All its mass is in the center, so classically the density is infinite.

http://physics.stackexchange.com/questions/5888/how-can-super-massive-black-holes-have-a-lower-density-than-water
http://www.physicsforums.com/showthread.php?t=483191

i'm still a ufo... nu m-ai prins. :D 
