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!
21
The only letter not appearing on the Periodic Table is the letter "J".
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A cesium atom in an atomic clock beats over nine billion times a second.
43
If the chemical sodium is dropped into water it will immediately and violently explode.
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Your brain is 80% water.
525
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
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Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
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