0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
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 zero gravity, a candle's flame is round and blue.
16
Out of all the senses, smell is most closely linked to memory.
146