Industrial processing of plants with chemicals
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Medieval armor against medieval arrows.
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Steam rises off Yellowstone’s Grand Prismatic Spring at sunrise.
\#nature
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Dentures were made from dead soldiers before the 19th century, places like the battle of Waterloo was a goldmine. Tens and thousands of teeth were sold, battlefield teeth were the most wanted because it meant they were young.
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In the 14th century in Japan, the technique of daisugi was born, in which new cedars are grown in old cedars by pruning the "old" branches in a special way
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The rings of Saturn appeared recently - 100 million years ago

To understand the time scale a little explanation:

The age of Saturn is 4.6 billion years. Let's compress the "life" of Saturn in 24 hours, i.e. it appeared at 00:00, which means its rings were formed only at 23:34.
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A monorail ride in Chiba, Japan
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Sound pressure is the variable overpressure that occurs in an elastic medium when a sound wave passes through it.

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A perpetual motion machine that contradicts all the laws of thermodynamics.
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Io is a satellite of Jupiter compared to North America.
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