Billions of neutrinos pass unnoticed through your body every second.
6
Sound travels about 4 times faster in water than in air.
408
German chemists made a replica of a trophy the size of one molecule.
68
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
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
Balsa wood is classified as a hard wood!
41