Balsa wood is classified as a hard wood!
41
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
The inventor of the Super Soaker squirt gun was a NASA Scientist who also helped develop the Stealth Bomber and the Galileo mission to Jupiter.
7
Most dust particles in your house come from dead skin.
48
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Diamonds can be shattered with a hammer.
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The force of a suction cup is calculated using F=AP.
15