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William Oughtred (5 March 1574 – 30 June 1660), [1] also Owtred, Uhtred, etc., was an English mathematician and Anglican clergyman. [2] [3] [4] After John Napier discovered logarithms and Edmund Gunter created the logarithmic scales (lines, or rules) upon which slide rules are based, Oughtred was the first to use two such scales sliding by one another to perform direct multiplication and ...
In c. 1622, William Oughtred of Cambridge combined two handheld Gunter rules to make a device that is recognizably the modern slide rule. [15] Oughtred became involved in a vitriolic controversy over priority , with his one-time student Richard Delamain and the prior claims of Wingate.
William Oughtred (1575–1660), inventor of the circular slide rule. A collection of slide rules at the Museum of the History of Science, Oxford. The slide rule was invented around 1620–1630, shortly after John Napier's publication of the concept of the logarithm.
William Oughtred greatly improved this in 1630 with his circular slide rule. He followed this up with the modern slide rule in 1632, essentially a combination of two Gunter rules , held together with the hands.
[55] [56] After Napier, Edmund Gunter created the logarithmic scales (lines, or rules); William Oughtred used two such scales sliding by one another to perform direct multiplication and division and is credited as the inventor of the slide rule in 1622. In 1631 Oughtred introduced the multiplication sign (×), his proportionality sign (∷ ...
The International Slide Rule Museum (ISRM) is an American museum dedicated to the preservation and display of slide rules and other mathematical artefacts. Established in 2003 by Michael Konshak, who serves as its curator, [3] [4] the museum houses a collection of slide rules from divers manufacturers and time periods, showcasing the evolution and importance of these instruments in the history ...
Rolling slides to break up double plays will not be permitted starting with the 2016 season according to new regulations adopted on Thursday by baseball.
A slide rule scale is a line with graduated markings inscribed along the length of a slide rule used for mathematical calculations. The earliest such device had a single logarithmic scale for performing multiplication and division, but soon an improved technique was developed which involved two such scales sliding alongside each other.