A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
The average home creates more pollution than does the average car.
33
Scientists aren't sure what color dinosaurs were.
312
According to studies, men change their minds two to three times more often than women.
72
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199