File:Albert Einstein writing on a blackboard in Pasadena (1931).jpg

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Summary

Description
English: Albert Einstein writes a density formula of the Milky Way on January 14, 1931 on the board of the Carnegie Institute of the Mt. Wilson Observatory in Pasadena, California.

Text for a tensor element is 

R ik = 0 ?
Date
Source

https://www.voanews.com/student-union/student-74-follows-einsteins-footsteps

https://www.apimages.com/metadata/Index/DEU-Forschung-Quantenphysik/ce5580ea4cbd4e4d8098482dbc0cf90f/36/0
Author
Associated Press (fl. 1940)  wikidata:Q40469 s:en:Portal:Associated Press
 
Associated Press
Alternative names
AP; AP Wire; the Associated Press; the AP; The Associated Press; apnews.com; ap.org
Description photographer
Work period 1940 Edit this at Wikidata
Authority file
creator QS:P170,Q40469

Licensing

Public domain
This work is in the public domain because it was published in the United States between 1930 and 1963, and although there may or may not have been a copyright notice, the copyright was not renewed. For further explanation, see Commons:Hirtle chart and the copyright renewal logs.
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 (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.

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Albert Einstein

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14 January 1931

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File history

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Date/TimeThumbnailDimensionsUserComment
current13:38, 10 January 2023Thumbnail for version as of 13:38, 10 January 20232,294 × 3,000 (1.79 MB)wikimediacommons>Cali.maid408Reverted to version as of 17:29, 28 August 2021 (UTC)

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