The Importance of the Center of Gravity

This is the heroine enlightenment in early childhood!

yhhxxlcaini

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Why do we need to cut a slant on the tree when felling it?

haoqiwanhuatong

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Car Disassembly Video

haoyongwujingongju

14 Views

When a rotary drilling rig is used to drill and pile, why is the hole filled with mud?

haoqiwanhuatong

21 Views

I've learned a lot! I always thought sperm extraction involved watching porn movies for visual stimu

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26 Views

Releasing an ant queen in a crowd of hungry mosquitoes, how will it end?

Zuoge100

101.5K Views

Why do two people need to swing the hammer when forging iron? #Science #Unzip #Ironmaking #Forging #

haoqiwanhuatong

17 Views

High voltage toys 2

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Mouse: You call this a cannon breaker 2

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31 Views

Those skilled workers deliver satisfying results on the job site!!

jixiepangke

32 Views

[DIY] I will teach you to make cool bismuth crystal!

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6.2K Views

Honeycomb honey in a glass bottle! Success! I took it out today to show you guys, but the success ra

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As long as you use the right method, work won't be that tiring.

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They say diamonds are forever, but they can be burned and broken.

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27 Views

Homemade Fly Trap

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277 Views

The moment the liquid aluminum was poured in, the ant nest immediately burst into flames! smoke ever

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2.9K Views

How are mooring ropes secured? #Science #Unzip #MooringRopes #Ship

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This is the first time I saw a hydraulic press fail.

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What modifications can be made to an excavator? #PopularScience #Unzip #LargeMachinery #Excavator

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Decompression video of the workers series!

jixiepangke

33 Views