Harvard earns enough money from interest on its endowment that it could offer free tuition to every student and still profit.
13
If you get water flowing fast enough, it can cut metal.
354
In a year approximately 900 million trees are cut down to make the raw materials needed for American pulp mills and paper.
-16
The first toilet being flushed in a motion picture was in the movie Psycho.
67
There are 170,000,000,000,000,000,000,000,000 ways to play the ten opening moves in a game of chess.
266
Any domino can knock over another object up to 1.5x its size. The 32nd object would be big enough to knock over the Empire State Building.
18


