When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
The earth is approx. 6,588,000,000,000,000,000 tons.
175
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
Nearly 50% of the world's scientists are assigned to military projects.
71
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61