Tag: math

Math puzzle: Bicycle, string and a rubber ducky

In this day of slickly science and math videos from the likes of John and Hank Green, it’s kind of refreshing to see an old school math demonstration that gets the facts across.

Bicycle string puzzle

Today, the Simons Foundation Mathematical Impressions blog features a mental puzzle involving a bicycle and a piece of string. If you pull backwards on a bicycle pedal with a string, will the Cannondale Super V 900 mountain bike roll forward? Or backward?