In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Sound travels fifteen times faster through steel than through air.
134
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Your brain is 80% water.
525
No matter how cold it gets, gasoline will not freeze.
107
Pure water (H2O) does not conduct electricity on its own.
46
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116