Playing with the time!

in #science6 years ago

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A black hole is characterized by two elements: the central singularity, a point where space-time stops making sense; and a horizon of events, which surrounds the singularity. It is called this because it represents the horizon beyond which a phenomenon can be observed: an astronaut outside this limit could never see what happens to a colleague who would end up on the other side. And this is because, within the horizon of events, gravity is such that not even light can come out of it.

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However, the astronaut who falls into it could experience a particular phenomenon if not immediately destroyed by the tidal forces. Falling gradually towards the singularity, space-time would expand to infinite values. The unfortunate astronaut would see in a few moments the future history of the whole cosmos, until his last lament.

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