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Slide Charts • Slide Rule Calculators • Bookfold Slide Guides • Wheel Charts • Data Dials • Trapped Dial Volvelles. Your target audience is overrun with more and more information, and they have less and less time to absorb it. Datalizer converts information into interactive, infographic products that bridge the time/data gap.
The leather zippered case has both a loop and a hook for attaching the calculator to a belt. It also holds an instruction pamphlet entitled Texas Instruments electronic slide rule calculator SR-10, copyrighted 1973. A warranty registration on the inside of the back page indicates these instructions were originally sold with an SR-10 calculator ...
Welcome. Use the navigation menu or the drop-down lists to discover a world of information! The Oughtred Society was founded in 1991 by a group of slide rule collectors and is dedicated to the preservation and history of slide rules and other calculating instruments. Over the past three decades it has evolved to an international organization ...
Slide rules were used for over 400 years for calculating and estimating. They were finally abandoned with the advent of hand-held calculators, computers and smart phones. Their elegant simplicity is still a thing of wonderment. This program replicates the most common types of slide rules: Straight, circular, spiral and cylindrical.
Slide rules have been made from wood, steel, aluminum, bamboo, and plastic. This machinist’s rule includes rational and decimal fractions, such as ¾ and 0.75. This rule was designed specifically to simplify conversions between different units of measurement. A popular retirement gift for engineers in the mid-1900s.
Nov 27, 2018 · Powley approached Hutton for help with the calculator. The two worked together to verify Powley’s equations and put it all into a calculator. It was quickly decided they needed help to design and produce a slide rule calculator. Enter Bob Forker, retired handloading editor and writer for G&A whose experience spanned some 40 years.
