Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Nylon is made from coal and petroleum.
42
The sun is 330,330 times larger than the earth.
75
German chemists made a replica of a trophy the size of one molecule.
68
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
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Pure water (H2O) does not conduct electricity on its own.
46
Scientists aren't sure what color dinosaurs were.
312