Brass doorknobs automatically disinfect themselves in about 8 hours.
18
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Most dust particles in your house come from dead skin.
48
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
Each day, up to 150 species of life become extinct.
-23
The force of a suction cup is calculated using F=AP.
15