/u/dunaan's posts
If nothing can travel faster than the speed of light, how did the universe expand to the size of a galaxy in the first three minutes after the Big Bang?
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With the just announced discovery of Proxima B, a nearby earthlike planet with 1.3x the mass of Earth, what could we expect the physical/health consequences of humans living a full lifespan from birth to old age in 1.3x Earth gravity to be?
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Is the matter that comprises subatomic particles analogous to a solid, or more like another of the states of matter?
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[AMA Request] A scientist or medical worker who is currently or has recently been investigating the Ebola virus outbreak there -- the deadliest we've ever had.
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Air travel is the safest way to travel (lowest chance of an accident), but space travel is one of the most dangerous. Which aspects of space travel in particular make it so much riskier from an engineering perspective?
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Was the devastation caused by the nuclear bombings of Hiroshima and Nagasaki worse than the devastation expected by extending the ongoing bombing campaigns for potentially years and ground invasion of Japan that would have happened otherwise?
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