Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Hot water can freeze faster than cold water.
181
The earth is approx. 6,588,000,000,000,000,000 tons.
175
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
Sound travels fifteen times faster through steel than through air.
134