/u/acken's posts in /r/askscience
If speed is relative, and nothing can exceed the speed of light, if I throw two balls at 90% c away from eachother, relative to one wouldn't the other be exceeding the speed of light?
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To settle an argument with a friend, if you were to dive head-first from a diving board approx. 4 ft off the ground into a pool of honey, would you survive?
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Because black holes can bend light, can we see the same celestial body in two entirely different directions? (Diagram inside)
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