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File:WillemKeesom1926.jpg

Original file ‎(2,734 × 3,292 pixels, file size: 1.36 MB, MIME type: image/jpeg)

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Nederlands: Prof. dr. W.H. Keesom, hoogleraar Natuurkunde en directeur van het Kamerlingh Onnes laboratorium in Leiden. is er als eerste in geslaagd om helium in de vaste fase te krijgen, door het bij hoge druk (150 bar) af te koelen.
Date
Source GaHetNa (Nationaal Archief NL) (using Dememorixer)
Author Unknown photographer
This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: rm artefacts per request at en:GL/ILL.

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Note: In Germany and possibly other countries, certain anonymous works published before July 1, 1995 are copyrighted until 70 years after the death of the author. See Übergangsrecht. Please use this template only if the author never claimed authorship or their authorship never became public in any other way. If the work is anonymous or pseudonymous (e.g., published only under a corporate or organization's name), use this template for images published more than 70 years ago. For a work made available to the public in the United Kingdom, please use Template:PD-UK-unknown instead.

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Date/TimeThumbnailDimensionsUserComment
current16:04, 20 November 2019Thumbnail for version as of 16:04, 20 November 20192,734 × 3,292 (1.36 MB)Begoonc:User:Rillke/bigChunkedUpload.js: fix minor mask error, rationalise file size
15:56, 20 November 2019Thumbnail for version as of 15:56, 20 November 20192,734 × 3,292 (2.34 MB)Begoonrm artefacts per request at en:GL/ILL
19:07, 11 July 2017Thumbnail for version as of 19:07, 11 July 20172,818 × 3,372 (495 KB)VysotskyUser created page with UploadWizard

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