Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Iron weighs more after it rusts.
16
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
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
Research indicates that plants grow healthier when they are stroked.
173
The inventor of the Super Soaker squirt gun was a NASA Scientist who also helped develop the Stealth Bomber and the Galileo mission to Jupiter.
7