In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
For every gallon of sea water, you get more than a quarter pound of salt.
45
Pure water (H2O) does not conduct electricity on its own.
46
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
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
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
One cubic foot of gold weighs more than 1,200 pounds!
78