Diamonds can be shattered with a hammer.
-104
The average temperature at 40,000 feet above sea level is -60 F.
56
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Most dust particles in your house are made from dead skin!
67
A cubic yard of air weighs about 2 pounds at sea level.
31
Nearly 50% of the world's scientists are assigned to military projects.
71