Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The average temperature at 40,000 feet above sea level is -60 F.
56
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
One ragweed plant can release as many as one billion grains of pollen!
51
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Sound travels about 4 times faster in water than in air.
408
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13