Sound travels about 4 times faster in water than in air.
408
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
The earth is approx. 6,588,000,000,000,000,000 tons.
175
4.5 pounds of sunlight strike the Earth each day.
27
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
