Harvard earns enough money from interest on its endowment that it could offer free tuition to every student and still profit.
13
When glass breaks, the cracks move at speeds of up to 3,000 miles per hour.
423
Play-Doh was first manufactured as a wallpaper cleaner.
122
It takes 492 seconds for sunlight to reach the Earth!
44
Music is as addictive to the brain as sex and drugs.
27
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
There are 293 ways to make change for a dollar.
148
20252 is Smokey the Bear's own zip code.
35