If the LHC makes a black hole,...?
and if it grew, how long would it take a micro-black hole to grow and finally kill us all?
- ChuckLv 51 decade agoFavorite Answer
Assuming it was possible for the LHC to make a black hole, and that black hole somehow stuck around, it would take a very long time for it to do anything.
The mass of the black hole would only be the mass of the 2 protons that collided to form it. So, it's only going to have the gravity "suck" of those 2 protons. My fingernail would have billions of times more gravitational pull than that black hole. Since its "suck" is basically 0, it's going to have to bump into things in order to have a chance of eating them.
And how often would it bump into anything? Well, remember it's going to be much smaller than a proton, many orders of magnitude smaller. You could drop it, and let it fall clear through the earth, and odds are it wouldn't bump into a single particle. It would probably be a month of it hanging around before it actually managed to bump into something. And then you'd have a black hole with the mass of 2 protons + 1 quark. It's going to take a really long time to get big enough to be dangerous.
- SVALLv 41 decade ago
Black Holes don't really work that way. Things have to be within a certain distance from them to be sucked in, called its Schwarzschild radius. This depends on the mass of the Black Hole and if the LHC made one, it would have an unimaginably small mass and would probably pass right through the Earth without causing any noticeable harm. Plus if Stephen Hawking is correct (which is likely) the Black Hole would evaporate in fractions of a second.
- xyzpdqfooLv 51 decade ago
I dunno, you're asking a silly question. A subatomic black hole would evaporate instantly due to Hawking radiation. The same theory that predicts we can form black holes like this is the theory that predicts Hawking radiation. No Hawking radiation, then no black holes.
So either we can't create black holes, or they would evaporate instantly. That's it. Simple, eh? No one can answer your question because it's impossible for us to create a micro black hole that would grow and kill us all.
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