File:Eratosthenes measure of Earth circumference.svg

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English: Illustration of the method Eratosthenes used to calculate the circumference of the Earth by CMG Lee. The map and globe are derived from http://commons.wikimedia.org/wiki/File:Egypt_sat.png and http://commons.wikimedia.org/wiki/File:Earth_orthographic_projection_Earthmap1000x500.jpg , respectively.
Date
Source
Egypt sat.png
Earth orthographic projection Earthmap1000x500.jpg
Author cmglee, David Monniaux, jimht at shaw dot ca

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Date/TimeThumbnailDimensionsUserComment
current09:20, 15 February 2023Thumbnail for version as of 09:20, 15 February 2023512 × 341 (54 KB)Getsnoopy (talk | contribs)Fixed some formatting issues.
10:11, 28 June 2022Thumbnail for version as of 10:11, 28 June 2022512 × 341 (54 KB)Andrei Stroe (talk | contribs)File uploaded using svgtranslate tool (https://svgtranslate.toolforge.org/). Added translation for ro.
12:59, 9 October 2019Thumbnail for version as of 12:59, 9 October 2019512 × 341 (50 KB)Cmglee (talk | contribs)Explain how shadow angle maps to angle around Earth centre.
19:30, 1 November 2016Thumbnail for version as of 19:30, 1 November 2016512 × 341 (49 KB)Cmglee (talk | contribs)Use satellite photo instead of topo map, and add protractor.
00:34, 1 November 2016Thumbnail for version as of 00:34, 1 November 2016512 × 341 (48 KB)Cmglee (talk | contribs)Outline shapes to work around thumbnail rendering bug losing gradient.
00:26, 1 November 2016Thumbnail for version as of 00:26, 1 November 2016512 × 341 (49 KB)Cmglee (talk | contribs)User created page with UploadWizard

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