File:PSM V42 D528 Pyramidical visualization of numbers.jpg
PSM_V42_D528_Pyramidical_visualization_of_numbers.jpg (558 × 310 pixels, file size: 32 KB, MIME type: image/jpeg)
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DescriptionPSM V42 D528 Pyramidical visualization of numbers.jpg | Pyramidical visualization of numbers | |||||
Date |
between 1892 and 1893 date QS:P,+1892-00-00T00:00:00Z/8,P1319,+1892-00-00T00:00:00Z/9,P1326,+1893-00-00T00:00:00Z/9 |
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Source | Popular Science Monthly Volume 42 | |||||
Author | Unknown authorUnknown author | |||||
Permission (Reusing this file) |
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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Extracted image from book, to grayscale, cropped whitespace. Modifications made by Ineuw. The original can be found here: Popular Science Monthly Volume 42.
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current | 20:34, 19 January 2011 | 558 × 310 (32 KB) | Ineuw (talk | contribs) | {{Information |Description = Pyramidical visualization of numbers |Source = [http://www.archive.org/details/popularsciencemo421893newy Popular Science Monthly Volume 42] |Date = 1892-1893 |Author = Unknown |Permission |
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