Quote:
Originally Posted by gzhpcu
the end black hole would have a mass of 2.5 x 10-14 grams. That’s 25 femtograms . . .
By time it gets to the center of the earth, it will have eaten about 10-16 grams of matter, which means it can grow by about 0.4% in the 30 minutes or so it takes to get to the center of the Earth.
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According to your figures, we can calculate the number of hours it would take to swallow the entire Earth, that weighs 6 x 10
27 gm.
2.5 x 10-14 gm * 1.0042*24*365*yrs = 6 x 1027gm
Solving for yrs, I get about 1 year 4 months until we are all dead.