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>if a tiny black hole had formed at LLC and swallowed the Earth The point is that tiny black hole, man-made or from the outer space, can't swallow Earth in any
by vl 5y ago
>if a tiny black hole had formed at LLC and swallowed the Earth
The point is that tiny black hole, man-made or from the outer space, can't swallow Earth in any reasonable amount of time: when it's gravitationally captured and orbits through Earth internals "forever", it's event horizon is so small, that it's very rarely interacts and captures new matter (after all, matter is not "dense" on the atomic level), so it grows very very slowly, even if it doesn't evaporate at all.
Any light black hole has really minuscule size. For comparison: black hole of mass of Earth is couple centimeters in diameter. Now, if such black hole comes from outer space and hits Earth, almost nothing will be left.
- solveit 5y agoYou're right, unless there is unknown physics that happens near a black hole.
- simiones 5y agoIt's still important to note that black holes at the atomic level, and gravitational effects of any kind at that level in fact, are entirely speculative science. QM doesn't allow for any kind of gravitational attraction, and GR doesn't account for any of the effects observed at atomic level, so we are left with only speculation. Microscopic black holes are an entire extra level of speculation over any other gravitational effects. Even in GR, black holes are not exactly consistent with the theory - they are singularities, indicating that (even if we knew nothing of QM) GR can't be a complete theory of nature. So, discussing what microscopic black holes can or can't do is not much more than discussing what effect photon torpedoes would have on a Holtzman shield (Star Trek x Dune fanfic).