What is "cyanotype"? Using sunlight to take photos can last for centuries!

Interesting Phenomena in Japanese Universities (VI)

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Principle of the Three-Stage Reducer

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Why does the mermaid start reciting pi when you hold an umbrella over the dinosaur?

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How Tsunamis Are Formed (3D Principle)

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This might be the most comprehensive and systematic borderland科普video on the entire platform.

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These kids look so annoying.

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Jilin: All my year-long promotion was for nothing.

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Do you know the Chinese sword-tipped grasshopper? It’s long and slender, which is why it’s also call

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

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Interesting "invisible building demolition method" eats up 140-meter-high buildings from top to bott

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How did the ancients make salt? Can you make edible salt by boiling seawater dry?

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What is "explosive welding"? Two metal sheets can be instantly joined by layering them with explosiv

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What is a semiconductor? What are semiconductors used for? A 3-minute guide to understanding semicon

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What are tumbleweeds? The flooding of roads and the invasion of small towns have Americans complaini

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Einstein's great mistake: quantum entanglement, is the cat in the box dead or alive?

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The secret of the square wheel's forward motion: the catenary, which mathematicians have studied for

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The interesting "zebra effect", are the stripes "white stripes on a black background" or "black stri

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What is the "Thatcher Effect"? When you turn a photo upside down, a strange phenomenon occurs

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The rope launcher that was played "broken": Stuffing wool into the exhaust hole, an interesting phen

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How corrosive is aqua regia? A man used a truckload of aqua regia to dissolve 8 tons of gold. Do you

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