Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
According to studies, men change their minds two to three times more often than women.
72
The bark of an older redwood tree is fireproof.
65
The average home creates more pollution than does the average car.
33
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
A ball of glass will bounce higher than a ball made of rubber.
73