In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Each day, up to 150 species of life become extinct.
-23
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
4.5 pounds of sunlight strike the Earth each day.
27
Nylon is made from coal and petroleum.
42
