In many countries, urine was used as a detergent for washing.
17
Real diamonds do not show up on x-ray.
36
The cruise liner, 'Queen Elizabeth 2', moves only six inches for each gallon of diesel that it burns.
26
"Dysania" is the state of finding it hard getting up out of bed in the morning.
33
There's a company in China that allows you to hire someone to stand in line for you for $3-$5 an hour.
14
It's impossible to kill yourself by holding your breath.
22
The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7
If left alone, 70% of birthmarks gradually fade away.
193