What would happen if a mini black hole was created on earth?

If a mini-black hole was created on earth, maybe in a particle accelerator, what would happen?


Would it fly off into space? Would it sink to the center of the earth and eat up the whole earth? Would it fall through the earth to the other side and back again, eating tunnels thru the planet until the whole planet was sucked in?


Once created, could a mini black hole ever be distroyed or contained?|||The mini-blackhole would be very short-lived, because blackholes do leak radiation (Hawking Radiation) away, and the rate of energy dissapation is inversely proportional to the blackhole's mass. In other words, the smaller the blackhole, the faster it radiates away its mass.





Given the maximum amount of energy that our largest particle accelerator, the LHC at CERN, can produce (~1 TeV), there is really NO need for any concern, as the mini-blackhole would NOT be large enough or live long enough to do any damage.





Don't let the hype get you all work up for nothing.|||1. The strength of the tidal force in a black hole depends on how gravitational attraction changes with distance. This means that small black holes cause spaghettification while infalling objects are still outside their event horizons, whereas objects falling into large, supermassive black holes may not be deformed or otherwise feel excessively large forces before passing the event horizon. In principle, a sufficiently energetic collision within a very powerful particle accelerator could produce a micro black hole. In practice, this is expected to require energies comparable to the Planck energy, which is vastly beyond the capability of any present, planned, or expected future particle accelerator to produce.


2. I think that the black hole sp created would swallow and absorb the whole earth.


3. No, I think that even a small black hole would eat up the Earth at once.


4. Larger black holes evaporate. If the initial mass of the hole was stellar mass, the time required for it to lose most of its mass via Hawking evaporation is much longer than the age of the universe, so small black holes are not expected to have formed by this method yet.





Note: This is a very interesting question indeed. Great question.|||However...if the black hole was large enough to attract other matter into itself, it would sink into the earth and oscillate around the earth's center of gravity- until no earth was left! I believe I read somewhere that that complete destruction of the earth and it's atmosphere would take only a few minutes for a black hole singularity just large enough to attract such matter and not evaporate through hawking radiation.


I'd also like to point out that my statement was a conjecture, and also that, as a purely theoretical one, I have a few objections to the stipulation that ANY black hole would immediately swallow earth. Black hole decay is analogous to entropy and, at least in theory, would seem to indicate that the lower limit for black holes may be much smaller than previously supposed-though all this, of course, is just a hypothesis. The black hole would (if such small ones exist) slice through the earth like a bullet through styrofoam, and zing around and around it's center of gravity, soaking up matter as it goes and causing an enormous release of catastropic heat energy while simultaneously slowing local time and making for what can really only be described as a total nightmarisly crazy death. Imho only, of course.