Search results
Results from the WOW.Com Content Network
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 ...
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.
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.
It consists of a small board with a knotted piece of twine through the center. The observer holds one of the knots in his mouth and extends the board away so that the edges make a constant angle with his eyes. Mariner's astrolabe Derived from the astrolabe, it was developed in late 15th century and found use in the 16th to 17th centuries.
As I stood inside a metal tube at the top of The Drop last month, a free-fall slide on Norwegian Cruise Line’s new ship Viva, a robotic voice gave me a four-second countdown before I dropped 10 ...
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 ]
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.
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!