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Engineer using a slide rule, with mechanical calculator in background, mid 20th century. A more modern form of slide rule was created in 1859 by French artillery lieutenant Amédée Mannheim, who was fortunate both in having his rule made by a firm of national reputation, and its adoption by the French Artillery. Mannheim's rule had two major ...
The Fuller calculator, sometimes called Fuller's cylindrical slide rule, is a cylindrical slide rule with a helical main scale taking 50 turns around the cylinder. This creates an instrument of considerable precision – it is equivalent to a traditional slide rule 25.40 metres (1,000 inches) long.
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.
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 ...
Other traditional aids used included tables (trigonometric, logarithms, etc.) and slide rules. Dividers used for measuring lengths of lines and approximate lengths of non-linear paths on a chart. Nautical almanac used to determine the position in the sky of a celestial body after a sight has been taken.
Otis Carter Formby King (1876–1944) was an electrical engineer [1] in London who invented and produced a cylindrical slide rule with helical scales, primarily for business uses initially. The product was named Otis King's Patent Calculator , and was manufactured and sold by Carbic Ltd. in London from about 1922 to about 1972.
As I stood inside a metal tube at the top of The Drop last month, a free-fall slide on Norwegian Cruise Line’s new ship Viva, a robotic voice gave me a four-second countdown before I dropped 10 ...
Fowler's son, Harold (1879-unknown), also graduated from Owen's College and worked as an electrical engineer before becoming an editor for The Mechanical Engineer alongside his father in 1905. [3] Three years later—in 1908—Harold began commercial production of circular calculators in a spare room of the Fowler house in Sale which was ...
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