Sound travels fifteen times faster through steel than through air.
134
A cesium atom in an atomic clock beats over nine billion times a second.
43
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
A ball of glass will bounce higher than a ball made of rubber.
73
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21