![c0nc0rdance on X: "The slide rule was invented by William Oughtred of Oxford in 1622. He also dabbled in alchemy, demons, and math pedagogy, so there was a definite theme to his c0nc0rdance on X: "The slide rule was invented by William Oughtred of Oxford in 1622. He also dabbled in alchemy, demons, and math pedagogy, so there was a definite theme to his](https://pbs.twimg.com/media/DsV6B0uUcAEwYbV.jpg)
c0nc0rdance on X: "The slide rule was invented by William Oughtred of Oxford in 1622. He also dabbled in alchemy, demons, and math pedagogy, so there was a definite theme to his
![The first slide rule: a discovery in the Macclesfield Collection – Cambridge University Library Special Collections The first slide rule: a discovery in the Macclesfield Collection – Cambridge University Library Special Collections](https://specialcollections-blog.lib.cam.ac.uk/wp-content/uploads/2016/02/UL-rule-detail.jpg)
The first slide rule: a discovery in the Macclesfield Collection – Cambridge University Library Special Collections
![The first slide rule: a discovery in the Macclesfield Collection – Cambridge University Library Special Collections The first slide rule: a discovery in the Macclesfield Collection – Cambridge University Library Special Collections](https://specialcollections-blog.lib.cam.ac.uk/wp-content/uploads/2016/02/Oughtred-and-Allen.jpg)
The first slide rule: a discovery in the Macclesfield Collection – Cambridge University Library Special Collections
![The first slide rule: a discovery in the Macclesfield Collection – Cambridge University Library Special Collections The first slide rule: a discovery in the Macclesfield Collection – Cambridge University Library Special Collections](https://specialcollections-blog.lib.cam.ac.uk/wp-content/uploads/2016/02/Farmar-rule.jpg)