The force of a suction cup is calculated using F=AP.
15
Sound travels fifteen times faster through steel than through air.
134
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
The only letter not appearing on the Periodic Table is the letter "J".
180
For every gallon of sea water, you get more than a quarter pound of salt.
45
One cubic foot of gold weighs more than 1,200 pounds!
78
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Sound at the right vibration can bore holes through a solid object.
134