At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
The sun is 330,330 times larger than the earth.
75