Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Cold water weighs more than hot water.
93
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
A ball of glass will bounce higher than a ball made of rubber.
73
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20