The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
The bark of an older redwood tree is fireproof.
65
Scientists aren't sure what color dinosaurs were.
312
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Billions of neutrinos pass unnoticed through your body every second.
6
The average temperature at 40,000 feet above sea level is -60 F.
56
Pure water (H2O) does not conduct electricity on its own.
46