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
Diamonds can be shattered with a hammer.
-104
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51