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File:Heinrich Rudolf Hertz.jpg

Description This is Heinrich Rudolf Hertz, from Oliver Heaviside: Sage in Solitude ( ISBN 0-87942-238-6), p. 111. The image is reprinted courtesy of the Burndy Library (as stated in the credits in the back of the book, p. 318), but its age implies that it's public domain. (It must have been made in 1894 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.
Date Photo first published 1894 at the latest
Source
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Author Robert Krewaldt


Public domain This image (or other media file) is in the public domain because its copyright has expired.

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This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.
Public domain This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1923.

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