Your brain is 80% water.
525
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Sound travels about 4 times faster in water than in air.
408
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
One third of the electricity produced on earth is used to power electric light bulbs!
75