File:Opfindelsernes bog3 fig282.png
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[edit]DescriptionOpfindelsernes bog3 fig282.png |
English: Drawing of a pith ball electroscope, invented 1754 by John Canton. It consists of a ball of pith suspended by a nonconductive silk thread from a wire hook mounted on a nonconductive stand. The ball is shown attracted to an electrically charged object held in the hand. |
Date | |
Source |
Dansk: "Opfindelsernes Bog" 1878 af André Lütken, Fig 282—283. Det elektriske Pendul.
English: "Opfindelsernes Bog" (Book of inventions) 1878 by André Lütken, Ill. 282. |
Author | Morten Bisgaard |
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PD-Old |
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[edit]Public domainPublic domainfalsefalse |
This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer.
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This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 20:18, 27 June 2007 | 1,500 × 1,500 (473 KB) | Bisgaard (talk | contribs) | changed dimensions | |
20:05, 27 June 2007 | 1,184 × 1,544 (457 KB) | Bisgaard (talk | contribs) | {{Information |Description=da: "Opfindelsernes Bog" 1878 af André Lütken, Fig 282—283. Det elektriske Pendul.<br><br> en: "Opfindelsernes Bog" (Book of inventions) 1878 by André Lütken, Ill. 282. |Source=From the book "Opfindelsernes Bog" 1878 by An |
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