The only letter not appearing on the Periodic Table is the letter "J".
180
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
One third of the electricity produced on earth is used to power electric light bulbs!
75
Hot water can freeze faster than cold water.
181
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61