/u/TyrannicalDuck's posts in /r/askscience
I pull a tray of ice cubes from the freezer. Why are some of them opaque and some of them almost brilliantly clear?
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Suppose an asteroid about 5 times the size of the Chicxulub one comes towards earth. How powerful a laser do we need to nudge it off course enough to miss?
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Given that many magical objects emit a glow of some sort, scientifically, what might we reasonably assume about the object, magical properties aside?
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