What are "Kent windows"? What are these small round windows in a ship's wheelhouse used for?

What is "pneumatic transmission"? It's launched like a cannonball! Do you know how it works?

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Who is the third coffin in Orochimaru's Impure World?

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finger repeater

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15,000 pieces of dominos in triple helix shape

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Wang Jian invented the ultra-long-range strike gun and defeated Yanchu Kingdom!

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These inventions are too "criminal", I really don't poke

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I really admire Japan in this regard!

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The great invention of "human"

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A look at Kamen Rider elements in various works! The influence of Kamen Rider! (Part 1)

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Are the famous anacondas actually cowards? Harmless fish are the real killers! How to spot danger in

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What is "shellac"? You might have tasted this magical Indian glue, secreted by billions of insects!

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The incredible metal "gallium" will break when it is coated on a Coke can. Do you know the reason?

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A little boy accidentally took his mother's essential oils, and this is what happened to his brain

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If an elevator falls out of control, can jumping out a second before hitting the ground save your li

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A drop of water kept me awake for three days and three nights...

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How is the "snail ball" made? Put it on a slope and interesting phenomena will happen

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Purely handmade, no deception...no deception

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The food culture in "Tom and Jerry" The food culture behind Tom and Jerry reveals what the yellow ch

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Life-saving channel

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Why did the "dragon washbasin" used by ancient emperors spray water when rubbing hands? After readin

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