Iron weighs more after it rusts.
16
Sound at the right vibration can bore holes through a solid object.
134
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
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
One barrel of petroleum holds 42 gallons.
20
Research indicates that plants grow healthier when they are stroked.
173
Iron weighs more after it rusts.
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