Excerpted from "The Grapes of Math: How Life Reflects Numbers and Numbers Reflect Life." Numbers were invented to describe precise amounts: three teeth, seven days, twelve goats. When quantities are ...

CHELMSFORD (CBS) - It's Pi Day, March 14, or 3/14. It was started back in 1988, by physicist Larry Shaw in San Francisco to celebrate the famous number and math in general. Dr. Matthew Beyranevand, a ...