Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
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For every gallon of sea water, you get more than a quarter pound of salt.
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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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One ragweed plant can release as many as one billion grains of pollen!
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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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A 'jiffy' is an actual unit of time for 1/100th of a second!
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When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
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Pure water (H2O) does not conduct electricity on its own.
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