The Forgotten Flexagon

Additional information

Matt Parker discusses the forgotten flexagon... Extra footage at: https://youtu.be/_UXyRug_6qE

More Matt Parker (video playlist): http://bit.ly/Matt_Videos

Catch Matt on the Numberphile podcast too: https://www.numberphile.com/podcast

Vihart's famed flexagon video: https://youtu.be/VIVIegSt81k

Matt's own website, with links to all his stuff, is at: http://standupmaths.com

Order a Parker Square T-Shirt: https://teespring.com/parker-square-by-numberphile