Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
The force of a suction cup is calculated using F=AP.
15
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
The average home creates more pollution than does the average car.
33
German chemists made a replica of a trophy the size of one molecule.
68