Sound travels fifteen times faster through steel than through air.
134
A ball of glass will bounce higher than a ball made of rubber.
73
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
One third of the electricity produced on earth is used to power electric light bulbs!
75
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89