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
Over its lifetime, the average microwave requires more energy to display a digital clock than to heat food.
10
One human hair can support 3 ounces.
191
The world’s smallest book, “Teeny Ted from Turnip Town”, is 100×70 micrometers in size and requires a scanning electron microscope to read, as light beams are too large.
6
There was once an undersea post office in the Bahamas.
241
The Gate Tower Building skyscraper in Japan has a highway passing through its fifth, sixth and seventh floors.
7
Pollen never deteriorates. It is one of the few natural substances that lasts indefinitely.
58