4.5 pounds of sunlight strike the Earth each day.
27
Each day, up to 150 species of life become extinct.
-23
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Scientists are attempting to create a synthetic brain by reverse-engineering the mammalian brain down to the molecular level. A cellular human brain is predicted possible by 2023. It hopes to shed light on consciousness.
10
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199