The incredible Buffon needle throw: throwing a needle randomly on paper can actually calculate "π"!

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

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How a vibrator works

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Gear latch process principle

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The wisdom of the working people is to change the direction of force to move heavy objects. #Science

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The most perfect revenge!

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

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The Butterfly Effect

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Incredible "tubeless siphon", liquid can climb up the wall of the cup by itself, do you know the pri

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A genius invention from 800 years ago! Why can lanterns roll freely without going out—what’s the und

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The essence of "〜奈み" is...

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How does a color TV display color images?

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Incredible friction welding, put two steel bars together and rotate them, and an interesting phenome

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I was reading the general surgery textbook: "It felt like being struck by lightning, and my whole bo

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How terrifying are aircraft engines? Why is it strictly forbidden for anyone to approach when the en

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What is a Tesla coil? Put a small flower on it and a strange phenomenon will happen.

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A Great Invention of Modern Times: The Zipper! Why can a tiny slider make the teeth open and close?

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Every time you escape one ball, 200 new balls will appear. #GeometricShapes #PlanetAnimation

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The world's tallest "rooster comb hairstyle," measuring a whopping 129.4 centimeters, has earned a G

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Incredible "sound-induced light", the bubble burst temperature is as high as 20,000℃, which is 4 tim

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Unbelievable metal "infectious disease": tin plates expand and shatter when they come into contact w

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