Where does the water go after flushing the toilet?

Why do staircases always spiral upward counterclockwise?

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How powerful is the power of science?

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The foreigner's giant plow tractor actually has a cab from the last century!

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A millennium-old mystery—anyone who understands can step forward and explain it.

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Where do mosquitoes lay their eggs?

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Learn a wilderness survival trick every day

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Skilled workers are working at a satisfactory site~

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How a Car Engine Works

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Machines make work simple!! (Stress-relieving version)

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Super Cool Mechanical Series: Speed Bumps! 12.12

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Decompression video of the mechanical series~

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Today's stress-relieving video: An amazing workplace scene! 12.12

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Let’s take a look at some amazing work sites!

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Learn the textbook-worthy way to call out a “green tea”!

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The Ultimate Sense of Comfort and Aesthetic Beauty

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Principles of Turbocharging and Supercharging

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Today's mechanical punk knot-tying tip

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The Evolutionary History of Aliens

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