Image:John Henry Poynting.jpg

This is John Henry Poynting, from Oliver Heaviside: Sage in Solitude (ISBN 0-87942-238-6), p. 117. Attribution is not provided for the image, but its age implies that it's public domain. (It must have been made in 1914 or earlier.) It was scanned on an Epson Perfection 1250 at 400dpi, cleaned up (some text was showing through the back) in Photoshop, reduced to grayscale, and saved as JPG using the 'Save for Web' optimizer. (From Grendelkhan)

This is a faithful photographic reproduction of an original two-dimensional work of art. The original image comprising the work of art itself is in the public domain for the following reason: 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. Deutsch | English | Español | Français | Gaeilge | Galego | Italiano | Nederlands | ‪中文(简体)‬ | +/- 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. Under United States copyright law, originality of expression is necessary for copyright protection, and a mere photograph of an out-of-copyright work may not be protected under U.S.copyright law. This photograph was taken in the U.S. or in another country where a similar rule applies (for a list of allowable countries, see Commons:When to use the PD-Art tag#Country-specific rules). This photographic reproduction is therefore also in the public domain. العربية | Česky | Deutsch | English | Ελληνικά | Español | فارسی | Français | עברית | Bahasa Indonesia | Italiano | 日本語 | 한국어 | Magyar | Nederlands | Polski | Português | Română | Русский | Slovenščina | Српски / Srpski | Basa Sunda | Türkçe | Українська | ‪中文(繁體)‬ | ‪中文(简体)‬ | +/-

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