Pumice is the only rock that floats on water.
14
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
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
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
A cubic yard of air weighs about 2 pounds at sea level.
31
A cesium atom in an atomic clock beats over nine billion times a second.
43
Nylon is made from coal and petroleum.
42