Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The force of a suction cup is calculated using F=AP.
15
The earth is approx. 6,588,000,000,000,000,000 tons.
175
German chemists made a replica of a trophy the size of one molecule.
68
A cesium atom in an atomic clock beats over nine billion times a second.
43
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
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
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55