How was rhubarb found to be edible when it isn鈥檛 palatable raw?
Many of our readers disagree that raw rhubarb tastes horrible, and come up with many reasons why this plant became a food crop
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How would weather change if Earth rotated in the opposite direction?
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This week鈥檚 new questions
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Is it better for a roll of toilet paper to roll towards you or away?
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Is it possible to yawn without closing your eyes? If not, why?
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How could I reach other dimensions in the multiverse? (part 2)
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This week鈥檚 new questions
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Is it possible to distinguish sunrise from sunset from an image?
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Why does a candle flame go out when we blow on it?
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Would a tug of war be possible between France and England? (part 2)
The mechanics of a tug of war over the 42km between France and England are encapsulated in an accidental poem from an 1819 book on mechanics, says one reader
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This week鈥檚 new questions
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What is the most efficient way to stir to dissolve something in water?
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Why is the noise of aeroplanes louder in colder weather?
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Why are birds mostly monogamous, but not mammals? (part 2)
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