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

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

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Cyber bike

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cave car

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

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I asked my wife for 3,000 to buy a computer desk, and I made one myself while she was away, leaving

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A car powered by CO2 VS a pressurized Coke can, who is faster?

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Isn't this a perpetual motion machine?

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Full of life experience, let you avoid 30 years of detours!

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Fall in love with rainbows, burn rainbows!

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How powerful can it be to propel a car with carbon dioxide? Plus a crash simulation experiment!

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genius handyman invention

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Moldy yellow pear wood was thrown on the side of the road. Fortunately, I picked it up and brought i

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spooky creativity

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Children's toys: use rainbow candies to bathe the baby

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