Sound travels fifteen times faster through steel than through air.
134
Balsa wood is classified as a hard wood!
41
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
One barrel of petroleum holds 42 gallons.
20
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Each day, up to 150 species of life become extinct.
-23
The force of a suction cup is calculated using F=AP.
15
