Brass doorknobs automatically disinfect themselves in about 8 hours.
18
A ball of glass will bounce higher than a ball made of rubber.
73
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
The average temperature at 40,000 feet above sea level is -60 F.
56
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
Sound travels fifteen times faster through steel than through air.
134