Brady's view on people who write: "FIRST" - https://www.youtube.com/watch?v=CmRh9tFYC68 More links & stuff in full description below ↓↓↓ Dr James Grime on the Pisano Period - a seemingly strange property of the Fibonacci Sequence. Available Brown papers: http://periodicvideos.blogspot.co.uk/2013/09/brown.html With thanks to null James Grime on Twitter: https://twitter.com/jamesgrime The Alan interview: https://www.youtube.com/watch?v=acTrvMlpuxA Lagrange Points: https://www.youtube.com/watch?v=mxpVbU5FH0s NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Videos by Brady Haran Patreon: http://www.patreon.com/numberphile Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/ Brady's latest videos across all channels: http://www.bradyharanblog.com/ Sign up for (occasional) emails: http://eepurl.com/YdjL9 Numberphile T-Shirts: null Other merchandise: https://store.dftba.com/collections/numberphile