Sound travels about 4 times faster in water than in air.
408
Sound travels fifteen times faster through steel than through air.
134
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
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
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Iron weighs more after it rusts.
68
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Scientists aren't sure what color dinosaurs were.
312