Cold water weighs more than hot water.
93
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
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
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118