The principle behind the unyielding Tang's thread

37 hidden tricks for wrenches—how many do you know?

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Anna introduces her older sisters—there are just way too many silly girls on this German farm!

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The irresistible mechanical series of speed bumps~

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Unboxing video!! The irresistible charm of machinery

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How a vibrator works

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Speed bump!! Amazing machinery~

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Why can the boomerang fly back

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Gear latch process principle

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Some Amazing Work Sites! (Late Release)

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16cm Diesel Engine 4WD Truck

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The Irresistible Mechanics of the “Men’s Speed Bump”

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Here Come the Tips for Using and Storing Hardware!

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The Irresistible Mechanics of “Men’s Speed Bumps”

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What Is “Human Supremacy”?

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[Uncle Qiu Takes a Look] The video has been packaged—welcome to check it out!

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Those are super cool machines!!

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Random Trivia

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[SCIENCE]Use animation to show the mechanism of a ring box

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Today's super cool mechanical gadgets from Mechanical Punk!

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Let's take a look at those awesome machines together!

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