Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
In zero gravity, a candle's flame is round and blue.
16
The storage capacity of human brain exceeds 4 Terrabytes.
140
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Nearly 50% of the world's scientists are assigned to military projects.
71
According to studies, men change their minds two to three times more often than women.
72