Water is transparent, so why is seawater blue? And why is lake water green?

Is the universe a simulation created by an advanced civilization?

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How to draw a circle?

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The Traps and Solutions of Body Language

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

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Why can the fountain stone ball rotate? #Popular Science #Unzip #Physics #Fountain Stone Ball #Trivi

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Orcinus orca, the Killer Whale, Likes to Play With People

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Let's follow Mechanical Punk to explore the irresistible charm of machinery!

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Can ice bullets really withstand the high temperature of gunpowder and become invisible after being

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The first time raising a blue ringed octopus

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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 most perfect revenge!

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The irresistible mechanical series of speed bumps~

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Super cool mechanical series of speed bumps!

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

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Interviewing the first candidate caught cheating in the college entrance examination in 2020, I neve

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Can a train of breadmen withstand the zombie attack? Zombie Attack #1

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Speed Bump Mechanical Series! 7.30

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