A portion of the water you drink has already been drunk by someone else, maybe several times over.
170
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
The best diamonds are colored blue-white.
80
No one knows Albert Einstein's last words. Just before he passed, he spoke several words in German, but his nurse only knew English.
154
The worlds oldest piece of chewing gum is over 9000 years old!
122
When glass breaks, the cracks move faster than 3,000 miles per hour.
47
Harvard earns enough money from interest on its endowment that it could offer free tuition to every student and still profit.
13