The average temperature at 40,000 feet above sea level is -60 F.
56
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
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
Sound travels about 4 times faster in water than in air.
408