Image:Pascaline calculator.jpg
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[edit] Summary
| Description |
Photo of a 'Pascaline', the mechanical calculator invented and manufactured by French scientist Blaise Pascal around 1642. From the accompanying text: "The machine has been reversed, and the bottom of the casing, which is hinged, thrown back, showing the numeral wheels and gearing of the different orders, and the transfer levers for the carry of the tens." The gearing worked similarly to a car's odometer. Alterations: removed frame and figure number, rotated image to justify, and increased brightness. Can anyone translate the handwritten card on it? |
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| Source |
Downloaded 2008-1-9 from J. A. V. Turck (1921) Origin of Modern Calculating Machines, Western Society of Engineers, Chicago, USA, p.10, fig.2 from Google Books |
| Date |
1921 |
| Author |
J. A. V. Turck |
| Permission (Reusing this image) |
Public domain - published in USA before 1923 |
[edit] Licensing
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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, 1923. See this page for further explanation.
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This image might not be in the public domain outside of the United States (this especially applies in Canada, China (not Hong Kong, Macao, or Taiwan Area), Germany, Mexico, and Switzerland). The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details. |
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| Date/Time | Dimensions | User | Comment | |
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| current | 13:41, 9 January 2008 | 906×510 (79 KB) | Chetvorno | ({{Information |Description=Picture of a 'Pascaline' a mechanical calculator invented by French scientist Blaise Pascal in 1642. |Source=Downloaded 2008-1-9 from [http://books.google.com/books?id=ir00AAAAMAAJ&pg=PA10 J. A. V. Turck (1921) ''Origin of Moder) |
