Brass doorknobs automatically disinfect themselves in about 8 hours.
18
For every gallon of sea water, you get more than a quarter pound of salt.
45
A ball of glass will bounce higher than a ball made of rubber.
73
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
Sound travels fifteen times faster through steel than through air.
134
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Billions of neutrinos pass unnoticed through your body every second.
6
Most dust particles in your house come from dead skin.
48