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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During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
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Neanderthal man had a brain capacity 100cc larger than modern man's.
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Scientists are now able to grow 'beating' heart tissue in a lab!
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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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Airports that are at higher altitudes require a longer airstrip due to lower air density.
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Iron weighs more after it rusts.
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Each day, up to 150 species of life become extinct.
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