The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
A ball of glass will bounce higher than a ball made of rubber.
73
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
A cubic yard of air weighs about 2 pounds at sea level.
31
Pumice is the only rock that floats on water.
14