Sound travels fifteen times faster through steel than through air.
134
Aluminum used to be more valuable than gold!
84
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Liquid TIDE laundry detergent glows under a blacklight.
96
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
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
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
Pumice is the only rock that floats on water.
14