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The incredible "curved and straight" model, the rotating and tilted red straight rod, an interesting

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What is the principle behind submarines? What's the difference between nuclear and conventional subm

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In one go, let’s explore 15 types of glass—how many have you seen?

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What is hot ice? Do you know how your palm freezes quickly when you put it in liquid?

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The Soviet human-ape hybridization experiment: Five girls were allegedly crossbred with chimpanzees.

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Can you pick up these things when foraging at the beach? Some of them, definitely don’t.

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It’s mushroom-picking season again—can you eat these mushrooms you find in the wild?

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