/u/Toxicitor's posts
If I dropped a lamp into a black hole and a photon left the lamp travelling *exactly* away from the singularity, after the lamp had passed the event horizon, would the photon slow down or leave the black hole?
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What is the chance that a lifeless planet identical to earth would generate life over 1 billion years?
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For a single cloud to rain for 40 days and 40 nights, flooding the whole earth, how big does the cloud have to be?
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If I was in an empty universe with no matter or energy other than myself, a space suit and a torch, would the light from the torch come back if I turned it on?
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