Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Your brain is 80% water.
525
No matter how cold it gets, gasoline will not freeze.
107
The average temperature at 40,000 feet above sea level is -60 F.
56
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Brass doorknobs automatically disinfect themselves in about 8 hours.
18