How can burning magnesium metal be extinguished?

[Steel Torrent March] This will be the roar of the steel and battleships of the fourth natural disas

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Converting water into hydrogen is so easy - How to make a simple hydrogen generator!!!

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Why is printer ink sold for more than champagne?

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

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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 don’t motorcycles make their fuel tanks transparent?

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Why did the workers dump clams into the mud?

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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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Why does someone have to risk their life to retrieve a single drill bit?

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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 it so hard to drive a walking tractor?

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A pirate dinghy approaches the giant ship—what can the crew do?

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

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The Pharaoh’s Curse: A Wish-Fulfillment Tale Written by Colonialists for the World

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Why do Vietnamese high school students disassemble an AK rifle during exams?

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Why do some popsicle sticks fall off before you even take a bite?

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Friendly reminder: This is a stress-relief video.

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Restoration process of vintage items

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