The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
The bark of an older redwood tree is fireproof.
65
The only letter not appearing on the Periodic Table is the letter "J".
180
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Sound at the right vibration can bore holes through a solid object.
134