Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
For every gallon of sea water, you get more than a quarter pound of salt.
45
Sound travels about 4 times faster in water than in air.
408
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
Liquid TIDE laundry detergent glows under a blacklight.
96
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5