Our guest is Ben Sparks - teacher, math populariser, and Numberphile regular. Ben Sparks website - https://www.bensparks.co.uk Videos with Ben on Numberphile - https://www.youtube.com/playlist?list=PLt5AfwLFPxWLDKmnxLg8477hrxY33LL6q Video of Tim Sparks performing Your Own Idea - Nikko Fir - https://www.youtube.com/watch?v=5IPAAfEI0VI And here's Tim's website - https://aquifermusic.co.uk A pic of Ben and Tim - https://images.squarespace-cdn.com/content/v1/5b2cf993266c07b1ca7a812f/1590521699145-6ZGAB4NI1CBMFZHB6COA/ke17ZwdGBToddI8pDm48kNT2eVQEY-tvUznxdHjTFiB7gQa3H78H3Y0txjaiv_0fDoOvxcdMmMKkDsyUqMSsMWxHk725yiiHCCLfrh8O1z5QPOohDIaIeljMHgDF5CVlOqpeNLcJ80NK65_fV7S1UUMlHVMWV89ysFQeo3BCw2DudxzyZmlhQUnNlB_8RO67TCgV58CQKqkVi4LppNMUzA/sparks.jpg?format=2500w The Bill Clinton picture - https://images.squarespace-cdn.com/content/v1/5b2cf993266c07b1ca7a812f/1590521645750-8SSLUFOJ44FHBY2CY70D/ke17ZwdGBToddI8pDm48kCTfbbirw_Kz_reANWbjbx57gQa3H78H3Y0txjaiv_0fDoOvxcdMmMKkDsyUqMSsMWxHk725yiiHCCLfrh8O1z5QPOohDIaIeljMHgDF5CVlOqpeNLcJ80NK65_fV7S1UUUUbrEjKYOBLZCDNnfZxQ9Ba7m9ij8hym6oVDvhcgheJZ0tmJreWGAR6J0td7EoUw/clinton.jpg?format=2500w Ben's Mandelbrot Video on Numberphile - https://www.youtube.com/watch?v=FFftmWSzgmk Advanced Mathematics Support Programme - https://amsp.org.uk/ Talking Maths in Public - http://www.talkingmathsinpublic.uk With thanks to MSRI - https://www.msri.org Support us on Patreon - we appreciate your help - https://www.patreon.com/numberphile The Patron Wall of Fame - https://www.numberphile.com/patrons PODCAST TRANSCRIPTS: https://www.numberphile.com/podcast-transcripts