Scientists aren't sure what color dinosaurs were.
312
A cesium atom in an atomic clock beats over nine billion times a second.
43
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
4.5 pounds of sunlight strike the Earth each day.
27
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
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