Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Iron weighs more after it rusts.
16
A ball of glass will bounce higher than a ball made of rubber.
73
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
German scientists claim to have evidence that suggests that our universe may exist inside of a computer simulated Matrix.
18
Nearly 50% of the world's scientists are assigned to military projects.
71
Iron weighs more after it rusts.
68
A cubic yard of air weighs about 2 pounds at sea level.
31