Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Iron weighs more after it rusts.
16
Each day, up to 150 species of life become extinct.
-23
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
According to studies, men change their minds two to three times more often than women.
72
For every gallon of sea water, you get more than a quarter pound of salt.
45
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310