Iron weighs more after it rusts.
16
In one day, adult lungs move about 10,000 litres of air.
11
People with light eye colors (like blue, green or grey) have a higher alcohol tolerance.
194
If the population of China walked past you, in single file, the line would never end because of the rate of reproduction.
1k
In 1996, research found that having excessive body hair is linked to higher intelligence.
23