Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Scientists in Germany have developed a candy that doesn't cause cavities.
11
A cesium atom in an atomic clock beats over nine billion times a second.
43
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Most dust particles in your house come from dead skin.
48
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13