Numberphile

Date formats and other reasons for Pi Day grumpiness from emeritus astronomy professor Mike Merrifield. More links & stuff in full description below ↓↓↓ More Pi videos from Numberphile: https://www.youtube.com/playlist?list=PL4870492ACBDC2E7C Professor Merrifield on Sixty Symbols (our physics channel): https://www.youtube.com/playlist?list=PLcUY9vudNKBNGAgplgACrGL9UlxyDHq7k Professor Merrifield is also a regular on Deep Sky Videos (our astronomy channel): https://www.youtube.com/@DeepSkyVideos Patreon: http://www.patreon.com/numberphile Numberphile is supported by Jane Street. Learn more about them (and exciting career opportunities) at: https://bit.ly/numberphile-janestreet We are also grateful for support from the Ben Delo Foundation - https://delo.org/ NUMBERPHILE Website: http://www.numberphile.com/ Videos by Brady Haran Numberphile T-Shirts and Merch: https://teespring.com/stores/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