What is the use of the transparent film on the tip of a ballpoint pen?

"Underground Aircraft Carrier" Tunnel Boring Machine

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

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How do submarines vent smoke while submerged?

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Why do some people wear two electronic ankle monitors on their feet?

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Where’s the safest seat on an airplane?

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How big can a belly get when carrying triplets?

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Why did the workers dump clams into the mud?

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

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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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Why is it that, among all trees, only this one has a solid black core?

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Why is an iron chain hung in the middle of a minecart tire?

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Why is it so hard to drive a walking tractor?

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Just rubbing a wooden stick can summon underground frogs—Thailand’s unique frog-hunting technique!

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How much does a house in North Korea cost?

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Saudi Arabia is littered with giant, thick-skinned watermelons—back in the day, you could find 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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When the big tree is about to fall, that’s when things really get dangerous!

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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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People are already stuck in the mud—why are they still planting rice seedlings?

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