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File:Kater pendulum.png

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Description
English: Drawing of a Kater pendulum from a 1920 physics textbook. Invented in 1817 by British physicist Henry Kater, it was used to measure the local acceleration of gravity in geophysical surveys. The labeled parts are identified in the text as: (a) opposing knife edges on either end from which pendulum is suspended, (b) fine adjustment weight operated by adjustment screw, (c) coarse adjustment weight, (d) bob, (e) pointers for reading. Alterations to image: removed part labels and replaced with different labels in color, converted from JPG to 32 color PNG.
Date
Source Downloaded November 25, 2008 from William Watson (1920) A Textbook of Physics, 7th Ed., Longman's Green & Co., p.127, fig.88 on Google Books
Author William Watson
Permission
(Reusing this file)		 Public domain: Watson died in 1903
Other versions Image:Kater pendulum vertical.png is a vertical version of this image

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Date/TimeThumbnailDimensionsUserComment
current20:24, 26 November 2008Thumbnail for version as of 20:24, 26 November 20082,086 × 552 (152 KB)Chetvorno{{Information |Description={{en|1=Drawing of a Wikipedia:Kater pendulum from a physics textbook. Alterations to image: removed part labels and replaced with different labels in color, converted from JPG to 32 color PNG.}} |Source=Downloaded November

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