0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Balsa wood is classified as a hard wood!
41
Most dust particles in your house come from dead skin.
48