A portion of the water you drink has already been drunk by someone else, maybe several times over.
170
If you took a standard slinky and stretched it out it would measure 87 feet.
52
At 90 degrees below zero, your breath will freeze in mid-air and fall to the ground.
25
By peeing in the shower, you can save 1,157 gallons of water a year.
31
The largest diamond ever found was an astounding 3,106 carats!
99
Passengers on the Beijing subway can pay with plastic bottles.
29
There are 2,500,000 rivets in the Eiffel Tower.
98
No piece of square dry paper can be folded more than 7 times in half!
26