Sunflowers can be used to clean up radioactive waste.
17
When glass breaks, the cracks move at speeds of up to 3,000 miles per hour.
423
By raising your legs slowly and laying on your back, you can't sink in quicksand.
105
The symbol on the 'pound' key (#) is called an octothorpe.
82
A quarter has 119 grooves on its edge, a dime has one less groove!
34
Harvard earns enough money from interest on its endowment that it could offer free tuition to every student and still profit.
13