For every gallon of sea water, you get more than a quarter pound of salt.
45
One barrel of petroleum holds 42 gallons.
20
The smell of freshly cut grass is actually a plant distress call.
31
Iron weighs more after it rusts.
16
Sound travels about 4 times faster in water than in air.
408
According to studies, men change their minds two to three times more often than women.
72
German scientists claim to have evidence that suggests that our universe may exist inside of a computer simulated Matrix.
18