Why isn't the Earth covered in poop?

Venus is closer to Earth, so why did humans give up exploring Venus and prefer heading to Mars inste

lilunkexue

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How to make a Poo-Po-Po boat for Sosuke and Ponyo?

lilunkexue

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Crab-eating monkeys: An ancestral craft of catching the sea

kuangyemaidong

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Where have all the thousands of snakes gone?

rolland_benton

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The teasing has begun!

hanenhuih

552 Views

The little tiger likes to flirt with cats, but was slapped wildly

Pushaixiadedaxingmaokedongwu

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

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

8 Views

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

haoqiwanhuatong

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

haoqiwanhuatong

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How to draw a circle?

lilunkexue

116 Views

It’s time for wild sesame paste to flood the market again, pinch you pinch you pinch you!!

Birenwangmou

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The Fertilization Process of Sperm and Egg

Jinzhengmeiyongde

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

haoqimiaomiaomiaody

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

tanmi

17 Views

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

Jinzhengmeiyongde

13 Views

20 common mechanical transmission structures, I'm exhausted

Jinzhengmeiyongde

78 Views

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

haoqiwanhuatong

23 Views

If AI were to draw the history of Earth's development...

Wuhudonghuarenkongjian

30 Views

[Alien vs. Predator] This Parasite Is Really Powerful

Cihaozhuxiaodangzhong

527 Views