/u/RobbiRobin's posts in /r/askscience
We say “dinosaur” as a catch-all term… But how diverse were dinosaurs actually from each other? Would they have been a specific group, like “Felines” or a much more general group like “Mammals”?
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I understand the difference in skin colour between races is due to how much sunlight that geographical area got. But, why do races also have different eye shapes?
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If time slows down the faster you move, does time on Earth move slower when a component our rotation lines up to be along the same vector as the movements of the solar system and the galaxy across space? And faster when vice versa? Does the speed of time vary with time of day and time of year?
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If you were to fall into a vat of molten metal, how long would the Leidenfrost effect keep you alive?
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