Nylon is made from coal and petroleum.
42
Sound travels fifteen times faster through steel than through air.
134
Nearly 50% of the world's scientists are assigned to military projects.
71
One cubic foot of gold weighs more than 1,200 pounds!
78
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
Sound travels about 4 times faster in water than in air.
408
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