The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
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
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
The only letter not appearing on the Periodic Table is the letter "J".
180
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
One barrel of petroleum holds 42 gallons.
20