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The slowest aircraft in the world, F1D, has a thin layer of material, but can fly in the sky for 40

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What Happens If You Accidentally Fall Into a Black Hole? How Terrifying Are Black Holes, Really?

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How did the ancients get change when they bought something with silver? I didn't expect the method t

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What are wind dampers? Why do skyscrapers withstand typhoons? It's all thanks to this thousand-ton i

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What is a "sliding vane pump"? Twist the eccentric rotor in the middle and something interesting hap

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