Special guest Matt Parker joins us in the archives at The Royal Society to look at some weird and wonderful mistakes from history. More links below ↓↓↓ Featuring author, comedian and YouTuber Matt Parker. Buy Matt's book "Humble Pi" here: http://bit.ly/Humble_Pi Check out Matt's YouTube channel: https://www.youtube.com/user/standupmaths Objectivity on Patreon: https://www.patreon.com/objectivity Subscribe to Objectivity: http://bit.ly/Objectivity_Sub Films by James Hennessy and Brady Haran Royal Society website: http://bit.ly/Royal_Society The Royal Society's own YouTube channel: https://www.youtube.com/user/RoyalSociety Facebook: https://www.facebook.com/ObjectivityVideos Twitter: https://twitter.com/objectivity_vid Patron thank you page: http://www.bradyharanblog.com/objectivity-patrons Objectivity T-Shirts: https://teespring.com/stores/objectivity