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File:Kreutz Heteronema trispira.jpg

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Kreutz_Heteronema_trispira.jpg (150 × 243 pixels, file size: 21 KB, MIME type: image/jpeg)

Summary

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Media data and Non-free use rationale
Description Micrograph of Heteronema trispira
Author or
copyright owner
Martin Kreutz
Source (WP:NFCC#4) Original publication: Real Micro Life

Immediate source: https://realmicrolife.com/heteronema-trispira/

Date of publication 2021
Use in article (WP:NFCC#7) Heteronema trispira
Purpose of use in article (WP:NFCC#8) To show the subject of the article in the infobox. The microphoto shows that the spiral shape of the organism is very long and distinctive, and visually different from H. spirale.
Not replaceable with
free media because
(WP:NFCC#1)
The subject is of a very rare microbe that cannot be found easily. The 1938 type drawing is copyrighted in Ukraine until 2068.
Minimal use (WP:NFCC#3) The image is scaled down in size.
Respect for
commercial opportunities
(WP:NFCC#2)
The author makes his micrographs freely available for educational and scientific purposes.
Other information
Fair useFair use of copyrighted material in the context of Heteronema trispira//en.wikipedia.org/wiki/File:Kreutz_Heteronema_trispira.jpgtrue

Licensing

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File history

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Date/TimeThumbnailDimensionsUserComment
current23:23, 13 November 2023Thumbnail for version as of 23:23, 13 November 2023150 × 243 (21 KB)3df (talk | contribs)Further scaled down non-free image
23:18, 13 November 2023No thumbnail334 × 540 (48 KB)3df (talk | contribs)Uploading a non-free file using File Upload Wizard

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