Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Diamonds can be shattered with a hammer.
-104
The average home creates more pollution than does the average car.
33
Research indicates that plants grow healthier when they are stroked.
173
4.5 pounds of sunlight strike the Earth each day.
27
One barrel of petroleum holds 42 gallons.
20
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9