Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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Brass doorknobs automatically disinfect themselves in about 8 hours.
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In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
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Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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In zero gravity, a candle's flame is round and blue.
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At 15 years old, Jack Andraka invented a method of diagnosing pancreatic cancer, thus helping to save the lives of millions of people around the world. It is 168 times faster, 26,000 times cheaper, 400 times more sensitive, and has a 99% success rate.
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The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
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Airports that are at higher altitudes require a longer airstrip due to lower air density.
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