Sound travels about 4 times faster in water than in air.
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Scientists are now able to grow 'beating' heart tissue in a lab!
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Your brain is 80% water.
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Scientists aren't sure what color dinosaurs were.
312
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
A cesium atom in an atomic clock beats over nine billion times a second.
43