(February 19, 2022 at 6:40 pm)Paleophyte Wrote: - Black holes are not your friend. They are top contenders for the most destructive phenomena ever discovered. The small ones "evaporate" with a detonation that outstrips any bomb that humans have ever conceived of. The mid-sized ones simply swallow the entire planet. The really big ones devour the solar system in one gulp. Do I need to explain why this would be a bad idea?
- Throwing a nuke into a black hole, or a black hole at a nuke, is one of the more absurd ways of actually making a nuclear bomb worse. Nuclear weapons are relatively inefficient at converting mass to energy, managing only a percent or two at the best of times. By contrast, a black hole can liberate more than 50% of the energy equivalent of any infalling mass. This is how astronomers can study black holes in other galaxies by looking at the gamma radiation that they emit. So your "solution" makes an explosion an order of magnitude larger than the nuke itself would have. And that's just the nuke. Once your black hole started pulling in atmosphere, ocean, and bedrock you'd have real trouble. It would effectively turn any nearby mass into a nuclear explosion.
TL;DR We can't do this and that's a very good thing.
Yes, when particle/atoms fall into a black hole, there is a full spectrum, from radio wave to gamma-ray, emission.
Another way is to observe background stars to see if the light is deflected.
Another way is to see the gravitational effecting the pathway of other moving objects, sort of how it was done to detect Pluto and Neptune.
Another way that I think has not been done yet is gravitational lensing.
