Mar 26, 2012
Let me also Say a Good Word about CERN’s Homegrown Old “Safety Report”:
Posted by Otto E. Rössler in categories: existential risks, particle physics
White dwarfs were justly highlighted there…
These collapsed old stars in the galaxy have (with a finite fraction of their population at least) proved immune to the onslaught of nature’s own ultra-fast analogs to CERN’s anticipated artificial ultra-slow mini black holes. This fact imposes constraints on the level of danger imparted by the artificial ones on our earth if successfully produced there.
A white dwarf contains about 100.000 times the mass of earth at the latter’s volume. The fact that it remains unscathed has consequences for an artificial black hole that is slow enough not to fly away but stay inside earth to circulate there. It must circle 30.000 times at its near-Keplerian speed of 10 km/sec, in order to have equally many passages through nucleons, before it starts to grow. Since one full circling takes about 1 hour, 30.000 circlings make up 30.000 hours or about 1.000 days or 3 years. The increased residence time inside the passed-through nucleons (with their inherently ultrafast quark motions) reduces the equivalence time by a factor of perhaps 1.000 to the order of 1 day.
On the other hand, we need safety margins of perhaps 100 in view of the vast number of safe passages of ultrafast mini black holes during the lifetime of a white dwarf. Therefore, the exponential growth phase inside earth (miniminiquasar formation) can only begin after a delay of several months.
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