Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
Each day, up to 150 species of life become extinct.
-23
Iron weighs more after it rusts.
68
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Most dust particles in your house are made from dead skin!
67
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61