Simple, You can't see them directly, so observe their neighbourhood.

Question

Simple, You can't see them directly, so observe their neighbourhood.

remember their strongest property? gravity! What will happen if you put an iron near a magnet? it will get attracted to the magnet, depending upon weight of the iron, and ability of magnet as well. here BH is a magnet. The worlds strongest magnet that don't even let light to escape. LIGHT. which is like fastest thing in observable universe. blackholes bend it and keep it to them. That's how you observe them, If a neat source of light is present near some BH, it will get sucked in. and it will get sucked in in a pattern. You stop seeing they are getting sucked after some time (some thousand years but still) The initial pull is faster, and then it gets slower and slower and slower until we feel like it's stopped. Guess why? because the light getting sucked in, is not getting out of the event horizon (the radius of BH).

#english #programming

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09.09.2018