Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Billions of neutrinos pass unnoticed through your body every second.
6
The bark of an older redwood tree is fireproof.
65
Each day, up to 150 species of life become extinct.
-23
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57