/u/ecafyelims's posts in /r/askscience
1301 upvotes
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If a radioactive isotope is accelerated near c, will the decay slow down or remain the same relative to observer?
82 upvotes
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Have scientists ever successfully changed an atom from one element to another element without it becoming radioactive?
31 upvotes
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Do we know what the Earth was like prior to the asteroid collision that formed the Moon? Could complex life have lived here?
22 upvotes
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Photons move at the speed of light, so there is no relative time lapse. How do they oscillate at all?
14 upvotes
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What is an acceptable definition for life -- in terms of distinguishing something from a living organism or not.
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10 upvotes
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