According to studies, men change their minds two to three times more often than women.
72
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
German chemists made a replica of a trophy the size of one molecule.
68
One ragweed plant can release as many as one billion grains of pollen!
51
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118