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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 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 ...
Walter Shawlee (1949 or 1950 — September 4, 2023) was a renowned American collector of slide rules.He was born in Los Angeles, [1] and attended University of California, Los Angeles to study electronics engineering and mathematics, and left before completing a degree. [2]
The R100 design was the project on which he mentions using a slide rule (a Fuller cylindrical model), only mentioned once in the book. The stress calculations for each transverse frame required computations by a pair of calculators (people) for two or three months. The simultaneous equation contained up to seven unknown quantities, took about a ...
A team of six engineers at the university was formed - led by Etkin as the senior scientist - to solve the problem in one day using nothing more than slide rules and collective expertise. (Besides Etkin, the team also consisted of Rod Tennyson, Barry French, Philip Sullivan, Peter Hughes, a specialist in orbital mechanics, and another senior ...
Carl Georg Lange Barth (February 28, 1860 – October 28, 1939) was a Norwegian-American mathematician, mechanical and consulting engineer, and lecturer at Harvard University. Barth is known as one of the foreman of scientific management, who improved and popularized the industrial use of compound slide rules. [1]
The company produced the 4139 Cooke Radio Slide Rule, designed in the mid-1930s by Nelson M. Cooke, of the Navy's Radio Materiel School, thousands of which were made. The K&E 4081-3 Log-Log Duplex Decitrig was a mainstay for engineering students and practicing engineers in the 1940s, 50s, and 60s. [ 8 ]
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.