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

I’ve been so busy I haven’t even had time to shave. Lately, even my tech-related videos are getting

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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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Why did the workers dump clams into the mud?

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

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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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Quick Science: Did you know why trees get “popped”?

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Why is it so hard to drive a walking tractor?

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The “Speed Bump Man”—a machine no one can resist

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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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A tool men can’t refuse

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Are the videos we watched fake? Has wild sex education been fooling us all these years?

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☝色情电影布景师

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

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Why can others catch crabs but you can't?

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What exactly is salmon's "white roe"? And why are people scrambling to eat it?

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Why must steel strands be first separated and combed?

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Do you know how a water-powered paddle wheel is made? Congratulations—you’ve just invented the water

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A satisfying cutting process~

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How to hand-build a welder at home?

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