File:Paul Ehrenfest.jpg

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DescriptionPaul Ehrenfest.jpg	Paul Ehrenfest
Date	circa 1910 date QS:P,+1910-00-00T00:00:00Z/9,P1480,Q5727902 s (based on comparison with other pictures of Ehrenfest)
Source	Portraits from the Dibner Library of the History of Science and Technology (reworked)
Author	Unknown authorUnknown author
Permission (Reusing this file)	PD-US The MacTutor website states the following "We believe that most of the images are in the public domain and that provided you use them on a website you are unlikely to encounter any difficulty."
Other versions	http://www-history.mcs.st-and.ac.uk/PictDisplay/Ehrenfest.html

Public domain	This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.	United States
	This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.

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	Date/Time	Dimensions	User	Comment
current	07:48, 30 June 2015	465 × 659 (126 KB)	Materialscientist	rotated
	20:14, 25 April 2007	465 × 659 (62 KB)	Abrev	reworked (size adapted to resolution, distortions removed etc)
	21:11, 14 May 2005	930 × 1,266 (104 KB)	Stern~commonswiki	Title: ''Paul Ehrenfest'' Year: unknown Source: http://www.sil.si.edu/digitalcollections/hst/scientific-identity/explore.htm (reworked) Licence: Public Domain