Autograph of Rayleigh

Autor:

John Strutt

Shortlink:

https://www.czwiki.cz/b/350c0

Zdroj:

Wikimedia Commons

Formát:

380 x 147 Pixel (17419 Bytes)

Popis:

This is Lord Rayleigh (1842-1919)'s autograph.

Licence:

Public domain

Credit:

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, cleaned up (some text was showing through the back) in Photoshop, reduced to indexed grayscale, and saved as PNG using the 'Save for Web' optimizer.

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