/r/askscience
When I poke my eye near my tear duct, what causes the black spot in the opposite corner of my sight?
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If you explain 3^2 as three multiplied by itself twice, how do you explain 3^-1 using the same language convention?
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Octopi have turned off annoying aquarium lights by squirting water at them, can use tools, and open jars - all while living as little as a year. How do they manage to learn so fast?
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As I only have two ears, why am I able to distinguish a sound coming from a source in front of me from one coming from a source behind me?
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