Why do people hide grenades under their pillows?

Water will flow uphill

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The teasing has begun!

hanenhuih

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The power of science

haoyongwujingongju

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Why do sprinkler heads keep knocking when irrigating farmland? #Science #Decompression #Irrigation #

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The irresistible mechanical series of speed bumps~

jixiepangke

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Super cool mechanical series of speed bumps! 7.18

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Introduction to Traditional Group Farming Culture in Africa

yaki1

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Why don’t civilian aircraft spray flames? The working principle of turbofan jet engines

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Let's take a look at those amazing work sites together~

jixiepangke

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The Great Wall version of the China Pavilion! The original Plants vs. Zombies with Chinese elements!

Laobingun

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

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Yemen is the first country to be destroyed by drugs, even children are not spared. How tragic is it?

tanmi

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Why can loose sand be made into sand sculptures after mixing with water?

haoqiwanhuatong

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I advise you to quit porn (enlarging testicles)

xuetudexin-

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Speed bump!! Amazing machinery~

jixiepangke

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How to lay a qualified asphalt road? #Science #Unzip #Paving #Knowledge

haoqiwanhuatong

23 Views

Super cool mechanical series of speed bumps!

jixiepangke

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"Earthquake Bed," which has been watched by 50 million people online, is about to release version 2.

Feifeijianzhang

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Why doesn't it hurt when a needle is stuck in my finger?

yaki1

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What kind of wisdom did the ancients have to design such a sophisticated mechanism?

haoyongwujingongju

23 Views