File:Embryonic development of a salamander, filmed in the 1920s.ogv

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Embryonic_development_of_a_salamander,_filmed_in_the_1920s.ogv ‎(file size: 59.31 MB, MIME type: application/ogg)

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Description
English: Early biological silent film, made sometime in the 1920s, which uses time-lapse photography to show the development of a salamander from egg to larvae.
Date
Source https://archive.org/download/Developm1920/Developm1920.ogv (via http://publicdomainreview.org/2012/06/04/development-of-a-salamander-1920s/ )
Author Department of Anatomy at Yale University.
Permission
(Reusing this file)
This work is in the public domain in the United States because it was published in the United States between 1929 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art. 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 (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.

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Date/TimeDimensionsUserComment
current20:27, 9 January 2014 (59.31 MB)imagescommonswiki>File Upload Bot (Magnus Manske)Transferred from http://archive.org/download/Developm1920/Developm1920.ogv by [[User:]] using url2commons

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