Pumice is the only rock that floats on water.
14
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Aluminum used to be more valuable than gold!
84
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Sound travels fifteen times faster through steel than through air.
134
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310