0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Balsa wood is classified as a hard wood!
41
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
4.5 pounds of sunlight strike the Earth each day.
27