Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Sound travels about 4 times faster in water than in air.
408
The force of a suction cup is calculated using F=AP.
15
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Sound at the right vibration can bore holes through a solid object.
134
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7