In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
A ball of glass will bounce higher than a ball made of rubber.
73
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
Liquid TIDE laundry detergent glows under a blacklight.
96
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5