/u/lAPPYc's posts
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Is it true that humans use only a fraction of their brain power? I've heard different numbers, from 17%to 30%. Is this true? If so, what's the number? And what does it mean?
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How do we know the electromagnetic waves have magnetic components perpendicular to the electric field components?
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How much and what types of minerals are there in the crusts of different extraterrestrial bodies near earth?
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