A nuclear submarine sunk 30 years ago had radiation levels 100,000 times higher than the standard

How to keep fish alive out of water - Lu Zhishen Popular Science

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Why do we need to grind off the bark? This is the process of peeling and rounding the wood before pe

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If you often watch videos, you don’t know how terrible the job of a porn appraiser is!

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I made a nuclear submarine with two radishes!

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Are the videos we watched fake? Has wild sex education been fooling us all these years?

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The first step after a burn is not to go to the hospital immediately!

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How sexy is sexy lingerie?

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This is how people who died in the nuclear leak were buried, in a welded metal coffin with cement.

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Psychological experiments

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Things you don't know about Jitu Express

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Incest, but not completely

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Why do we need to install a wellbore when digging a well? #Science #Unzip #IncreaseKnowledge #Diggin

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Can you find underground water sources by holding two copper wires?

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Cleaning the foam pool at the playground may seem stress-relieving, but it's actually very hard work

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Why do we use chains to wrap around the oil drill pipe when extracting oil? #Science #Unzip #Frictio

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In ancient times, there were no refrigerators. How did people make and preserve ice in the summer? Y

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The wisdom of the working people is to change the direction of force to move heavy objects. #Science

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The incredible "Puff Boat" can move forward by lighting a candle. Do you know the principle?

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