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en.wikipedia.org/wiki/Micrometer

A micrometer sometimes known as a micrometer screw gauge, is a device incorporating a ... The first ever micrometric screw was invented by William Gascoigne in the 17th century, as an enhancement of the ... The micrometer caliper was introduced to the mass market in anglophone countries by Brown & Sharpe in 1867, ...

www.mitutoyo.co.jp/eng/pdf/R257_Micro.pdf

1639 W. Gascoigne invented a micrometer caliper comprising of jaws and scale. 1638 W. Gascoigne utilised screw threads to observe stars. The first recorded ...

answers.yahoo.com/question/index?qid=20071205150749AAQmtfH

In its current form vernier caliper was introduced in 1631 by Pierre Vernier of ... Mr. William Gascoigne invented micrometer screw as a better ...

encyclopedia2.thefreedictionary.com/Micrometer+Caliper

Looking for Micrometer Caliper? Find out information about Micrometer Caliper. micrometer a measuring instrument whose conversion mechanism consists of a ...

www.all-spec.com/micrometer-part-2

Palmer based this compact, handheld micrometer on the same principles as Gascoigne's 1638 invention (A Brief History of the Micrometer Part I: The Early ...

www.britannica.com/technology/micrometer

Micrometer, in full micrometer caliper, instrument for making precise linear measurements of dimensions such as diameters, thicknesses, and lengths of solid ...

www.kanabco.com/vms/measure_mic_basic/measure_mic_basic_01.html

In 1772 James Watt - who also invented the steam engine - invented a screw device that moved a pair of jaws in and out (image on the right). When a part made ...

www.ehow.com/about_5132241_history-micrometer.html

Most micrometers use a set of calipers to measure the outside of an item, but there ... James Watt invented the first micrometer in 1772 as a way to improve the  ...

owlcation.com/stem/A-Brief-History-of-Calipers

Dec 16, 2016 ... The first calipers were seen in China and were used for not only ... in the Spanish Hapsburgs (now France) invented the "graduated caliper. .... Micrometer Caliper- The micrometer caliper is a smaller caliper made for smaller ...