File:1898 Dewar.jpg

Uploaded by Francoisdarbois
Upload date 2013-12-21T15:43:58Z
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Summary

Description
Français : Sir James Dewar réussit le premier la liquéfaction de hydrogène à -240°C en utilisant la petite pompe hydraulique de Cailletet et sa cuve à mercure; il laissa son nom également au vase Dewar, qui était en fait le vase thermos inventé par d'Arsonval.
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Author
Olive Edis (1876–1955)  wikidata:Q7087149
 
Olive Edis
Alternative names
Mary Olive Edis; Olive Galsworthy; Olive Edis Galsworthy
Description British photographer and war photographer
Date of birth/death 3 September 1876 Edit this at Wikidata 28 December 1955 Edit this at Wikidata
Location of birth London Edit this at Wikidata
Work period 1893 Edit this at Wikidata–1940 Edit this at Wikidata
Authority file
creator QS:P170,Q7087149

Licensing

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.

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.

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Category:CC-PD-Mark Category:Files with no machine-readable source Category:Images without source Category:James Dewar Category:PD-old-70-expired Category:PD-old missing SDC copyright status Category:Photographs by Olive Edis Category:Undeleted in 2026