Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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Sound travels about 4 times faster in water than in air.
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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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One 75-watt bulb gives more light than three 25-watt bulbs.
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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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Scientists are attempting to create a synthetic brain by reverse-engineering the mammalian brain down to the molecular level. A cellular human brain is predicted possible by 2023. It hopes to shed light on consciousness.
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One third of the electricity produced on earth is used to power electric light bulbs!
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Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
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