Why can fireworks have such a variety of colors and shapes?

Scientists Discover: The Universe May Have an "Axis," Potentially Overturning Current Cosmology

lilunkexue

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

haoqiwanhuatong

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How to draw a circle?

lilunkexue

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Decompression video of the workers series!

jixiepangke

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When MC upgrades, it becomes more scientific, and the maximum level is beyond my imagination # Minec

Xiaomengbugugu

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20 common mechanical transmission structures, I'm exhausted

Jinzhengmeiyongde

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

yaki1

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

tanmi

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Spoon/fork: If I had known this was a bad factory

xiaokechibaobao

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

haoqiwanhuatong

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How harsh is the environment on a polar research vessel? #PopularScience #Unzip #ResearchShip #Polar

haoqiwanhuatong

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Why do we cut trees at height? Will there be accidents? #高空伐木 #解压 #科普

haoqiwanhuatong

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Let's take a look at the amazing workplace of skilled workers!

jixiepangke

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

jixiepangke

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

haoqiwanhuatong

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Dangerous animals you have never seen

wojiaowangyifeii

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Let's take a look at those fascinating machines together

jixiepangke

35 Views

I just want to be a little environmental guardian #protect the environment #outdoor shooting

huadajiedangong

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

jixiepangke

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After the colors of various countries are merged... [Unzip]

weirdojieyaguanhall

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