This is Lord Rayleigh (1842-1919), from Oliver Heaviside: Sage in Solitude (ISBN0-87942-238-6), p. 38. This is a reproduction of a steel engraving originally published in The Electrician, 1893. 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.
Source
The Electrician (scanned)
License
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Bu çalışma ABD'de veya yazarın yaşamının sona ermiş olmasından 70 veya daha fazla süre geçtiğinde bu duruma uygun telif yasaları olan tüm ülkelerde kamu malıdır.
Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Jamaica has 95 years, Colombia has 80 years, and Guatemala and Samoa have 75 years. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term. Honduras has a general copyright term of 75 years, but it does implement the rule of the shorter term. Copyright may extend on works created by French who died for France in World War II (more information), Russians who served in the Eastern Front of World War II (known as the Great Patriotic War in Russia) and posthumously rehabilitated victims of Soviet repressions (more information).
00:48, 28 Jul 2004 . . Grendelkhan (98283 bytes) (This is Lord Rayleigh (1842-1919), from ''Oliver Heaviside: Sage in Solitude'' ({{ISBN|0-87942-238-6}}), p. 38. This is a reproduction of a steel engraving originally published in ''The Electrician'', 1893. It was scanned on an Epson Perfection 1250 at 400dpi)
5 mai 2005 à 19:14 . . Lozère (98283 octets) (This is Lord Rayleigh (1842-1919), from ''Oliver Heaviside: Sage in Solitude'' ({{ISBN|0-87942-238-6}}), p. 38. This is a reproduction of a steel engraving originally published in ''The Electrician'', 1893. It was scanned on an Epson Perfection 1250 at 400dpi)
;Description :This is Lord Rayleigh (1842-1919), from ''Oliver Heaviside: Sage in Solitude'' (ISBN 0-87942-238-6), p. 38. This is a reproduction of a steel engraving originally published in ''The Electrician'', 1893. It was scanned on an Epson Perfection
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