Science Friday

Science, technology, environment and health news and discussion with host Ira Flatow.


Friday 11 a.m. – 1 p.m and 9 p.m. – 11 p.m
on News Station

 We Get Support From:
Become a Supporter 
 We Get Support From:
Become a Supporter 

Friday, March 14, 2014 Permalink

Science Friday: Celebrating Irrational, Transcendental Pi

Some 4,000 years ago, Babylonian and Egyptian scholars calculated the ratio of a circle's circumference to its diameter—or π—to be 3.125 and 3.1605, respectively. Archimedes later refined their estimations to 3.14163.
Today, with the help of computers, scientists have calculated some 10 trillion digits of pi. In our celebration of Pi Day (March 14, or 3.14), mathematician Steven Strogatz talks about how the ancients calculated pi—and how you can do it at home with a box of toothpicks.

Visit the Science Friday website