This video’s sponsor Brilliant is a great way to learn more. You can try Brilliant for free for thirty days by visiting and the first 200 subscribers receive 20 percent off Brilliant's annual premium subscription. Special thanks to the Patrons: Juan Benet, Ross Hanson, Yan Babitski, AJ Englehardt, Alvin Khaled, Eduardo Barraza, Hitoshi Yamauchi, Jaewon Jung, Mrgoodlight, Shinichi Hayashi, Sid Sarasvati Welch Labs Support on Patreon receive exclusive benefits: Amazon Logarithms Reading List: Watch TikTok: @welchlabs Learn More or Contact: Instagram: X: References The History of Mathematical Tables: From Sumer to Spreadsheets - Martin Campbell-Kelly Navigation - James Pryde e: the story of a number - Eli Maor Description of the Wonderful Canon of Logarithms - John Napier Construction of the Wonderful Canon of Logarithms - John Napier Arithmetical Logarithmica - Henry Briggs, translated by Ian Bruce The Daring Invention of Logarithm Tables - Klaus Truemper Henry Briggs MacTutor: A reconstruction of the tables of Briggs’ Arithmetica logarithmica - Denis Roegel A reconstruction of the tables of Napier’s descriptio (1614) - Denis Roegel The HP-35 Design, A Case Study in Innovation - David S. Cochran The Polyphase Slide Rule A Self Teaching Manual - William E. Breckenridge When Slide Rules Ruled - Cliff Stoll