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Image: Barnard's fanless self-cooling tower

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Description: Illustration showing "Barnard's fanless self-cooling tower", an early design of a large cooling tower used in combination with steam engine condensers. For more details and key to the lettering, see source at Section 29:Page 39. (Digitally cleaned up by the uploader)
Title: Barnard's fanless self-cooling tower
Credit: Illustration from A Textbook on Steam Engineering. Scranton, PA: International Textbook Company. Sectionb 29: p. 39. Digital scan at http://archive.org/details/textbookonsteame04inteiala
Author: Unsigned engraving; book by International Textbook Company
Permission: 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. Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country. PD-1923 Public domain in the United States //commons.wikimedia.org/wiki/File:Barnard%27s_fanless_self-cooling_tower.jpg
Usage Terms: Public domain
License: Public domain
Attribution Required?: No

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