What would be the effect of removing the iron branch in the bicycle tire and replacing it with a sho

The handsome origami mechanical triangle dart that takes off! It is recommended that boys have one

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Professional performance test

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[Braiding Rope] Original handmade "Zuohai Yinchuan" handmade rope DIY tutorial by Zhijian Minimalist

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Isn't this a perpetual motion machine?

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New Tmax ... CTTO

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1/3 tire + 1/3 tire + 1/3 tire = 1 tire

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High-quality human "playing with mud"

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fun magnetic game

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Two-wheel-drive bike, hand-assembled!

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The most creative safe in the world: a lock with a magnet!

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Build a rubber band machine gun out of corrugated paper and hold up to 120 rubber bands!

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Half tire + half tire = one tire

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【Miniatures】Although we can't afford a house, we can build one ourselves!

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Just how impenetrable is this armor made of 1500 coins?

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A V8 powered by an electric screwdriver! Fully handcrafted model with gas pedal!

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From entry to prison

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How powerful can an air pressure machine gun with a firing rate of 1200 be made from a Coke bottle?

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Cyber bike

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This machine engraving is no worse than manual carving! How much can you score?

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Today is another very "punishment" day, da da da

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