Slide rule mentioned in Pepys' diary entry of May 5 1663 (pepysdiary.com) 2 points by bufordtwain 10y ago ↗ HN
[–] ahazred8ta 10y ago ↗ Note that Oughtred developed the first slide rules circa 1622, based on earlier work by Gunter and Napier. Pepys mentioned seeing a very small one.https://en.wikipedia.org/wiki/William_Oughtred
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[ 5.4 ms ] story [ 33.3 ms ] threadhttps://en.wikipedia.org/wiki/William_Oughtred