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Before the advent of the scientific pocket calculator, it was the most commonly used calculation tool in science and engineering. [3] The slide rule's ease of use, ready availability, and low cost caused its use to continue to grow through the 1950s and 1960s, even as electronic computers were gradually introduced.
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.
The use of these early drawings was to express architectural and engineering concepts for large cultural structures: the temples, monuments, and public infrastructure. Basic forms of technical drawing were used by the Egyptians and Mesopotamians to create highly detailed irrigation systems, pyramids, and other such sophisticated structures.
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]
Slide Rule concentrates on Nevil Shute's work in aviation, ending in 1938 when he left the industry. The book begins with details of Shute's childhood and upbringing, his school years, events in the Easter 1916 Dublin Rising , where his father was Secretary to the Post Office in Ireland, and service during World War I .
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.
Some older engineers who owned slide rules and know how to use them do indeed use them as a (nostalgic) backup, but even that use is uncommon. They can be useful in education, though--I had a math teacher who hauled a bunch out to teach logarithms quite nicely.
Fowler became editor for the weekly journal The Practical Engineer in 1891, which led to him starting the Scientific Publishing Company in 1898. That year, The Mechanical Engineer—his weekly journal under the Scientific Publishing Company—published a design for a circular calculator operated by moving fixed pointers over a revolving dial. [4]