Sound travels about 4 times faster in water than in air.
408
Diamonds can be shattered with a hammer.
-104
In zero gravity, a candle's flame is round and blue.
16
The inventor of the Super Soaker squirt gun was a NASA Scientist who also helped develop the Stealth Bomber and the Galileo mission to Jupiter.
7
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
The average temperature at 40,000 feet above sea level is -60 F.
56
Indoor pollution is 10 times more toxic than outdoor pollution.
62