The amazing vortex tube—no electricity required, yet it can instantly cool air down to below zero?

Even with an annual salary of 200,000, we still can't find anyone to hire.

beifangjixieshi

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Craftsmanship Techniques

haoyongwujingongju

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Everyday life hacks with hardware items bring surprises everywhere

haoyongwujingongju

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Candle Production Process

moyuzhinai_02

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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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Speed bumps!! A mechanical marvel men can't resist~

jixiepangke

28 Views

Super cool mechanical series of speed bumps!

jixiepangke

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Super cool mechanical series of speed bumps! 7.18

jixiepangke

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[Magnetic Ball Creativity] Use magnetic balls to build the most creative rooftop swimming pool villa

magnet-easy

34.3K Views

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

jixiepangke

69 Views

Those amazing work sites for speed bumps~

jixiepangke

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[Exploring the Mystery] Some boys’ “femininity” may be caused by genes!

tanmi

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The power of science

haoyongwujingongju

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Far more than the average family car? A palm-sized inline four! The whole process of assembly!

kejishouo

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

haoqimiaomiaomiaody

23 Views

The brake pads of a 10,000-ton ship are excavators??!!

yueguangyueshangxin

15 Views

Here are some life hacks. Learn if they are useful, and use them as stress relief if they are useles

haoyongwujingongju

44 Views

How many balls can there be in life? When it’s time to chop, chop your hands, and prosper in Kyushu.

hilary_lam

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The ultimate beauty of physics

Jinzhengmeiyongde

53 Views

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

haoyongwujingongju

30 Views