Ad
related to: k&e slide rule for saleebay.com has been visited by 1M+ users in the past month
Search results
Results from the WOW.Com Content Network
Slide rules had never been very profitable for K&E, so it was not difficult to discontinue the line. K&E's market share shrank because of other technological advancements, and the firm shut down its slide-rule engraving machines in 1975. [9] Over the years, K&E had amassed a collection of hundreds of slide rules, nomograms, and mechanical ...
Pilot balloon slide rules were used by meteorologists in weather services to determine the upper wind velocities from an ascending hydrogen or helium-filled pilot balloon. [27] The E6-B is a circular slide rule used by pilots and navigators. Circular slide rules to estimate ovulation dates and fertility are known as wheel calculators. [28]
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.
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.
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.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Get the Boydton, VA local weather forecast by the hour and the next 10 days.
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]
Ad
related to: k&e slide rule for saleebay.com has been visited by 1M+ users in the past month