0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Balsa wood is classified as a hard wood!
41
Scientists in Germany have developed a candy that doesn't cause cavities.
11
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Research indicates that plants grow healthier when they are stroked.
173
Diamonds can be shattered with a hammer.
-104
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89