Escaping Black Holes: Is It Possible?

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The discussion centers on the possibility of escaping a black hole once inside its critical radius. While some argue that having sufficient potential energy could allow for escape, others emphasize that once inside the event horizon, the escape velocity exceeds the speed of light, making escape impossible. The conversation highlights the difference between Newtonian mechanics and general relativity, with the latter providing a more accurate understanding of black hole dynamics. Additionally, the concept of Hawking radiation is introduced, explaining how energy and matter can theoretically escape a black hole over an immense timescale, but not through conventional means. Ultimately, the consensus is that escape from within a black hole's event horizon is not feasible.
  • #31
Zanket said:
The best way of thinking about it that I’ve seen is here:

Picture space as flowing like a river into the black hole.

While this picture does have many good points as far as visualizing what happens around a black hole, it does have one weak point. That is the fact that there is no way to measure the "flow of space". If it helps you understand how objects behave around Black Holes, great - but don't take it too literally, because there is no way to actually build a "space flowmeter". In fact, the principle of relativity prohibits one from building such a device, as it would be able to measure absolute velocities.
 

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