Brass doorknobs automatically disinfect themselves in about 8 hours.
18
No matter how cold it gets, gasoline will not freeze.
107
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
Cold water weighs more than hot water.
93
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
Most dust particles in your house come from dead skin.
48