File:Lettvin Pitts.jpg

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Description en:Walter Pitts and en:Jerome Lettvin with a frog they experimented with, possibly a Rana Pipiens (Lithobates pipiens), according to their research paper of 1959.[1]
Date 28 April 2006 (original upload)
Source http://en.wikipedia.org/wiki/Image:Lettvin_Pitts.jpg and Family album
Author Iapx86

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Iapx86 at the English-language Wikipedia, the copyright holder of this work, hereby publishes it under the following license:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
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attribution share alike 		This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
Attribution: Iapx86
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Date/TimeThumbnailDimensionsUserComment
current19:19, 7 January 2021Thumbnail for version as of 19:19, 7 January 2021490 × 662 (139 KB)Jochen Burghardt (talk | contribs)Cropped 7 % horizontally, 7 % vertically using CropTool with lossless mode, to get rid of the black border
00:06, 27 March 2008Thumbnail for version as of 00:06, 27 March 2008528 × 710 (151 KB)Mdd (talk | contribs){{Information |Description=en:Lettvin_Pitts |Source= http://en.wikipedia.org/wiki/Image:Lettvin_Pitts.jpg and Family album |Date=28 April 2006 (original upload) |Author= Iapx86 |other_versions= }} {{PD-user-w|en|

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