TED-Ed

A clever way to estimate enormous numbers - Michael Mitchell (2012x46)

Air date: Sep 12, 2012

Have you ever tried to guess how many pieces of candy there are in a jar? Or tackled a mindbender like: “How many piano tuners are there in Chicago?” Physicist Enrico Fermi was very good at problems like these -- learn how he used the power of 10 to make amazingly fast estimations of big numbers.