Most dust particles in your house come from dead skin.
48
Research indicates that plants grow healthier when they are stroked.
173
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
A ball of glass will bounce higher than a ball made of rubber.
73
A cesium atom in an atomic clock beats over nine billion times a second.
43
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Cold water weighs more than hot water.
93
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9