Aluminum used to be more valuable than gold!
84
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Pumice is the only rock that floats on water.
14
The average home creates more pollution than does the average car.
33
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
German scientists claim to have evidence that suggests that our universe may exist inside of a computer simulated Matrix.
18
Hot water can freeze faster than cold water.
181
Nearly 50% of the world's scientists are assigned to military projects.
71