Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Cold water weighs more than hot water.
93
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5