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For example, a 10 cm (3.9 in) circular would have a maximum precision approximately equal to a 31.4 cm (12.4 in) ordinary slide rule. Circular slide rules also eliminate "off-scale" calculations, because the scales were designed to "wrap around"; they never have to be reoriented when results are near 1.0—the rule is always on scale.
Keuffel and Esser 7" slide rule (5" scale, 1954) [1] 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 ...
Slide rule; Metadata. This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
The other side is a circular slide rule. Extra marks and windows facilitate calculations specifically needed in aviation. Electronic versions are also produced, resembling calculators, rather than manual slide rules. Aviation remains one of the few places that the slide rule is still in widespread use. Manual E6-Bs/CRP-1s remain popular with ...
[3] In 1929 Hayner returned to Columbia University. She taught in the Ernest Kempton Adams Laboratory and specialized in teaching the advanced laboratory class. [2] She later directed the laboratory until her retirement in 1966. [1] [3] In 1937, Hayner designed and constructed a circular slide rule in Braille. The construction took over 100 ...
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.
Slide rule collecting 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 ]
Richard Delamaine or Delamain, known as the elder (bef. 1629 – bef. 1645), was an English mathematician, known for works on the circular slide rule and sundials. Life [ edit ]
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