File:Hendrik Antoon Lorentz.jpg

Summary

Description
English: Hendrik Lorentz, a Dutch physicist, in front of a blackboard with tensor formulas from Einstein's general theory of relativity in Lorentz' handwriting.
Nederlands: Hendrik Lorentz, Nederlands natuurkundige, voor een collegebord met formules (tensoren) uit de algemene relativiteitstheorie van Einstein, in het handschrift van Lorentz.
Date 1916; based on comparison with the dated painting at the Instituut-Lorentz by Menso Kamerlingh Onnes
Source http://th.physik.uni-frankfurt.de/~jr/physpictheo.html (moved from de:Bild:Hendrik Antoon Lorentz.jpg)
Author The website of the Royal Library shows a picture from the same photosession that is attributed to Museum Boerhaave. The website of the Museum states "vrij beschikbaar voor publicatie" (freely available for publication).
Permission
(Reusing this file)		 PD-old
Other versions http://www.leidenuniv.nl/mare/2004/21/libri08.html

Licensing

Public domain
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, 1931, and if not then due to lack of notice or renewal. See this page for further explanation.
United States
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.
Category:PD US#Hendrik%20Antoon%20Lorentz.jpgCategory:PD-US missing SDC copyright status
Public domain

This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer.

Category:PD-old missing SDC copyright status

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, 1931.

This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

Category:CC-PD-MarkCategory:PD-old-70-expiredCategory:PD-old missing SDC copyright statusCategory:PD-old-70-expiredCategory:PD-old missing SDC copyright status Category:Hendrik Antoon Lorentz Category:Black and white portrait photographs of male scientists Category:Photographs in Museum Boerhaave Category:Scientists at blackboards
Category:Black and white portrait photographs of male scientists Category:CC-PD-Mark Category:Hendrik Antoon Lorentz Category:PD-US missing SDC copyright status Category:PD-old-70-expired Category:PD-old missing SDC copyright status Category:PD US Category:Photographs in Museum Boerhaave Category:Scientists at blackboards