Iron weighs more after it rusts.
16
Research indicates that plants grow healthier when they are stroked.
173
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
The storage capacity of human brain exceeds 4 Terrabytes.
140
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13