Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Most dust particles in your house come from dead skin.
48
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
No matter how cold it gets, gasoline will not freeze.
107
Billions of neutrinos pass unnoticed through your body every second.
6
The average temperature at 40,000 feet above sea level is -60 F.
56