/u/3210atown's posts
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If our stomach lining sheds on a regular basis to deal with stomach acid, why don't our intestines erode from the acidity?
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Why do orbits like Saturn's rings go horizontally and not vertically around the planet? Is there a defined "up" and "down" in space?
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If I dropped dry ice into a cup of water in a room that was below freezing, would the water rapidly freeze instead of turning to fog?
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Why are indigo and violet separate colors on the spectrum when they could both be interpreted as shades of purple?
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