The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7
Only humans shed emotional tears.
331
The number of text messages sent and received in a given day is greater than the world's population.
198
The small pocket in the larger pocket of your jeans was designed for pocket watches.
11
The search engine Google got its name from the word 'googol', which refers to the number one with a hundred zeros after it.
56
Blue eyes are the most sensitive to light, dark brown the least sensitive.
105
It takes about 63,000 trees to make the newsprint for the average Sunday edition of The New York Times.
-11
More than 10% of the world's salt is used to de-ice American roads.
54