In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Pumice is the only rock that floats on water.
14
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Pure water (H2O) does not conduct electricity on its own.
46
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39