Most dust particles in your house come from dead skin.
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At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Balsa wood is classified as a hard wood!
41
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
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It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
Scientists are now able to grow 'beating' heart tissue in a lab!
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