Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The sun is 330,330 times larger than the earth.
75
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
Most dust particles in your house come from dead skin.
48
Sound travels fifteen times faster through steel than through air.
134