The "poor man's bomb" explodes as soon as it is hit. Has it become a training prop?

A weapon of extreme simplicity yet formidable combat power: the ancient sling!

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Swallowing bricks, eyeballs being shot out—these individuals with rare traits are truly the pinnacle

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Why is printer ink sold for more than champagne?

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Why is it so hard to drive a walking tractor?

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How do submarines vent smoke while submerged?

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Wire is obviously very stiff, so why does it snap after just a few bends?

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In China, it’s treated like a treasure; on Amazon, people actually eat it for dinner?

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Why don’t motorcycles make their fuel tanks transparent?

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Why did the workers dump clams into the mud?

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How should you eat whelks?

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Why is there always a worker crouching in the most dangerous spot next to the piling rig?

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A神奇, entirely transparent creature in the sea that looks like a silicone toy

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Why must concrete mixer trucks rinse their drums immediately after work?

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Thousands of wires have been severed—how will the master reconnect them?

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It may seem like a waste to use premium wood for mop handles, but it’s actually a clever application

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Why can others catch crabs but you can't?

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Why must steel strands be first separated and combed?

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Immersive experience, no commentary~

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The world’s Guangji Bridge is the earliest bascule bridge in history.

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Teach you a simple wilderness survival tip

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