/u/IrnBroski's posts
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How would an alien civilization from the Milky Way, at or around our level of technology, discovering the existence of the planet Earth, ascertain that this planet harboured life?
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If global warming is essentially a problem of the earth being less able to dissipate the solar energy it receives, do solar panels exacerbate the problem by absorbing energy that would otherwise be reflected?
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What do they mean when they say that electromagnetism, the strong nuclear and weak nuclear forces all unify into one force at high temperatures? Is it one force or three forces?
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