Iron weighs more after it rusts.
16
Out of all the senses, smell is most closely linked to memory.
146
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
The force of a suction cup is calculated using F=AP.
15
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
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55