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In 1937, physicist Lucy Hayner designed and constructed a circular slide rule in Braille. [20] Throughout the 1950s and 1960s, the slide rule was the symbol of the engineer's profession in the same way the stethoscope is that of the medical profession. [21] Aluminium Pickett-brand slide rules were carried on Project Apollo space missions.
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 ...
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 ...
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 ]
Also pictured below is the "deflection board", used to correct for any of the factors #6 through #9 above. The Model 1905 board is shown in the two images below. [note 10] This device had a movable T-square and also a movable brass frame (or platen), both of which could be slid back and forth independently across three scales that ran across ...
He used a Bygrave Slide Rule as an aid to navigation during flights in the 1930s, one of which was the first solo flight from New Zealand to Australia in a Gipsy Moth biplane. He later completed a round the world cruise in his yacht Gipsy Moth IV. This was the first solo circumnavigation using the clipper route. Sir Francis Chichester wrote ...
The second, outer, cylinder is printed with the slide rule's primary logarithmic scale in the form of a 50-turn helix 12.70 metres; 500 inches (41 ft 8 in) long with annotations on the scale going from 100 to 1000. A brass tube with a mahogany cap at the top is a slide fit into the first cylinder.
A flight computer is a form of slide rule used in aviation and one of a very few analog computers in widespread use in the 21st century. Sometimes it is called by the make or model name like E6B, CR, CRP-5 or in German, as the Dreieckrechner.
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