Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
The force of a suction cup is calculated using F=AP.
15
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Hot water can freeze faster than cold water.
181