Nearly 50% of the world's scientists are assigned to military projects.
71
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
The sun is 330,330 times larger than the earth.
75
Sound travels fifteen times faster through steel than through air.
134
Pure water (H2O) does not conduct electricity on its own.
46
Pumice is the only rock that floats on water.
14
Balsa wood is classified as a hard wood!
41