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Summary
DescriptionDynamo - iron filings show distorted field.png
English: Photographed, reduced to grayscale, and saved as a PNG by Dale Mahalko, Gilman, WI.
Date
Source
Public Domain source:
Hawkins Electrical Guide, Volume 1
Chapter 19: Theory of the Armature, Page 265
Copyright 1917 by Theo. Audel & Co.
Printed in the United States
Source and copyright information:
Transferred from en.wikipedia to Commons by Oxyman using CommonsHelper.
Author
Nehemiah Hawkins
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Public domainPublic domainfalsefalse
This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
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Original upload log
The original description page was here. All following user names refer to en.wikipedia.
2007-09-15 00:29 DMahalko 861×619× (578602 bytes) This is from the 1917 Hawkins Electrical Guide, page 265 of volume 1. Photographed, reduced to grayscale, and saved as a PNG by me. Dale Mahalko, Gilman, WI Source and copyright information: {| | [[Image:1917 Hawkins Electrical Guide - Titlepage.jpg|3
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21:55, 7 April 2021
861 × 619 (362 KB)
JohnVanVliet
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16:51, 15 November 2008
861 × 619 (565 KB)
File Upload Bot (Magnus Manske)
{{BotMoveToCommons|en.wikipedia}} {{Information |Description={{en|TBD '''Public Domain''' source: * Hawkins Electrical Guide, Volume 1 * Chapter 19: Theory of the Armature, Page 265 * Copyright 1917 by Theo. Audel & Co. * Printed in the United States
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