In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Liquid TIDE laundry detergent glows under a blacklight.
96
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
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
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65