Iron weighs more after it rusts.
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
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Pumice is the only rock that floats on water.
14
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Scientists are now able to grow 'beating' heart tissue in a lab!
162