Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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A single speck of dust is half way in size between a subatomic particle and the Earth.
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The left ear is more responsive to words of love and emotion whispered into it than the right.
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Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
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According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
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The average temperature at 40,000 feet above sea level is -60 F.
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Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
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