File:Thomsons mirror galvanometer, 1858. (9663806048).jpg
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[edit]DescriptionThomsons mirror galvanometer, 1858. (9663806048).jpg | Sir William Thomson, Lord Kelvin, (1824-1907) was Professor of Natural Philosophy at Glasgow University, and was well known for his work in many branches of physics, including electricity. The first transatlantic telegraph cable was laid in 1858, reducing the time it took for messages to cross from days or months to hours. The success of the system relied on an instrument that could detect the tiny electrical signals that had passed so far under the sea. Thomson's galvanometer was the only instrument sensitive enough to detect reliably the first transatlantic telegraph messages. Made by J White. |
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Thomson's mirror galvanometer, 1858.
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Author | Science Museum London / Science and Society Picture Library |
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This image, originally posted to Flickr, was reviewed on 3 September 2013 by the administrator or reviewer File Upload Bot (Magnus Manske), who confirmed that it was available on Flickr under the stated license on that date. |
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current | 10:25, 3 September 2013 | ![]() | 1,250 × 1,014 (235 KB) | File Upload Bot (Magnus Manske) (talk | contribs) | Transferred from Flickr by User:Mrjohncummings |
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Image title |
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Author | Science Museum |
Copyright holder |
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Source | ELMC100116 |
Short title |
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Width | 3,504 px |
Height | 2,842 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CS6 (Macintosh) |
File change date and time | 15:11, 28 August 2013 |
Exif version | 2.21 |
Color space | Uncalibrated |
Unique ID of original document | adobe:docid:photoshop:8c925472-e773-11d6-a2a8-a088d4c6a06f |
Category | Electricity & Magnetism |
Special instructions | Science & Society Picture Library
020 7942 4400 piclib@nmsi.ac.uk |
Date and time of digitizing | 13:17, 28 August 2013 |
Date metadata was last modified | 16:11, 28 August 2013 |
Copyright status | Copyright status not set |
Keywords | physics; galvanometers; mirror galvanometers; Lord Kelvin; Atlantic submarine telegraph cable; J White; electric current meters; electricity; telegraphy; telecommunications; signals; Thomson, William |
Country shown | United Kingdom |
IIM version | 2 |