You can immediately cool down a car that has been sitting under the sun by rolling down the window on one side and opening-closing the door on the other side 5-6 times.
23
More than 10% of the world's salt is used to de-ice American roads.
54
A pipe 2 feet in diameter will allow four times more fluid to pass through it than a pipe 1 foot in diameter.
20
Harvard earns enough money from interest on its endowment that it could offer free tuition to every student and still profit.
13
A portion of the water you drink has already been drunk by someone else, maybe several times over.
170
The Gate Tower Building skyscraper in Japan has a highway passing through its fifth, sixth and seventh floors.
7
It's impossible to sink in the Dead Sea without equipment!
72
You burn more calories sleeping than you do watching television.
348
