/u/andyjeff76's posts
If photons travel at the speed of light, and time is dilated as you approach this speed, does this mean that all photons are precisely zero seconds old by their own reckoning?
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Is the rise in Measles cases the result of the anti-vaccination movement, or is there another explanation?
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How could there be anything "inside" a black hole, beyond the event horizon? Time moves slower and slower as you approach a gravitational singularity. By our reckoning, shouldn't everything falling into a black hole be right on it's surface?
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How much higher would g need to have been to have prevented the use of chemical rockets to enter space?
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