The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7
About two hundred babies are born worldwide every minute.
237
A portion of the water you drink has already been drunk by someone else, maybe several times over.
170
A typical lead pencil can draw a line that is 35 miles long.
158
The odds of being killed by falling out of bed are one in two million.
136
Pollen never deteriorates. It is one of the few natural substances that lasts indefinitely.
58
When glass breaks, the cracks move faster than 3,000 miles per hour. To photograph the event, a camera must shoot at a millionth of a second!
114
Mentally doing a task makes you better at it. Your mind can barely tell the difference.
18