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 weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Cold water weighs more than hot water.
93
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
The bark of an older redwood tree is fireproof.
65
The only letter not appearing on the Periodic Table is the letter "J".
180