Nylon is made from coal and petroleum.
42
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Balsa wood is classified as a hard wood!
41