What is "cushion paper"? Gently pull out the honeycomb grid, which could replace plastic packaging!

The ancient navigational tool "Sextant" is still in use today! Do you know how it works?

lengkepu

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Speed bumps for boys and girls!! Those novel machines

jixiepangke

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Speed Bump!! Cool Mechanical Series 6.17

jixiepangke

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Why do sheep stay still when they are being shorn?

jixiepangke

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At least... he repaired the water outlet well

xiaojinzimowan

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Speed Bump Worker Series

jixiepangke

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

jixiepangke

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When woodpeckers peck at trees, are they really curing the trees' illnesses?

jixiepangke

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Some useful life tips~

jixiepangke

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Come take a look at the amazing work site!!

jixiepangke

27 Views

Water cockroaches

____ochaotang

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Principles of Directional Demolition Blasting

yichundahuasheng

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The incredible "Diamond Mud" - stick it on the metal gap and a magical phenomenon will happen!

lengkepu

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Does hot water freeze faster than cold water? This seemingly simple question has sparked debate amon

lengkepu

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The Epic Documentary "The Legend of Grandpa Niu"

fredric_matthews_02

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The incredible "two-way bolt" will not loosen for a hundred years if you twist it left or right. Do

lengkepu

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Post-00s employee gets criticized by the boss for leaving work on time, and directly tags the boss i

sukanshijieguanfang

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What is "shellac"? You might have tasted this magical Indian glue, secreted by billions of insects!

lengkepu

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The incredible "death hammer" will not rebound once it strikes! Do you know how it works?

lengkepu

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The classic electrostatic experiment "Thousands of People Shocking" turns on the switch of the middl

lengkepu

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