It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
A cesium atom in an atomic clock beats over nine billion times a second.
43
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
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 force of a suction cup is calculated using F=AP.
15
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75