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File:Future Tesla wireless power transmitter.jpg

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Summary

Description
English: A 1925 artist's conception of what Nikola Tesla's wireless power transmission system might look like in the future. Tesla spent the latter part of his life working on the transmission of electric power through the atmosphere using radio waves. He built a large dome shaped transmitter called the Wardenclyffe tower in Shoreham, New York, which was never used. Although Tesla never got beyond a few low power demonstrations, he was an inveterate promoter and his talks on wireless power caught the imagination of the public. Hugo Gernsback, the science fiction magazine publisher, was fascinated by the idea and published a number of articles in his electronics magazines about wireless power. This futuristic painting illustrated one of the articles. The power plant with the glowing wireless transmitter tower in the foreground, based on the Wardenclyffe tower, is broadcasting power to run the futuristic aircraft and light the city in the background.

Caption: "An artist's conception of Nikola Tesla's system for transmitting power by radio waves, which was proposed several years ago.
Date
Source Retrieved July 12, 2014 from Joseph Riley, "Transmitting Power by Radio" in Radio News magazine Vol. 7, No. 6, December 1925, p. 766 archived on American Radio History website
Author The work is signed "Paul" for Gernsback's illustrator, Frank R. Paul
Permission
(Reusing this file)		 This 1925 issue of Radio News magazine would have the copyright renewed in 1953. Online page scans of the Catalog of Copyright Entries, published by the US Copyright Office can be found here. [1] Search of the Renewals for Periodicals for 1952, 1953 and 1954 show no renewal entries for Radio News. Therefore the copyright was not renewed and it is in the public domain.

Licensing

Public domain
This work is in the public domain because it was published in the United States between 1929 and 1963, and although there may or may not have been a copyright notice, the copyright was not renewed. For further explanation, see Commons:Hirtle chart and the copyright renewal logs.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.

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December 1925Gregorian

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current16:43, 13 July 2014Thumbnail for version as of 16:43, 13 July 2014907 × 615 (150 KB)ChetvornoUser created page with UploadWizard

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