Euler's Eyes
2026-10-30
History of Mathematics
Page 249 of 270
Image credits
Historical images and photographs
All come from Wikimedia Commons. We use the files or the thumbnails provided by Commons, reduced to at most 800 pixels wide, with no other editing.
- Archimedes thoughtful, painting by Domenico Fetti (c. 1620): source page · public domain.
- Ortygia, Syracuse, photo by Andrea Schaffer: source page · CC BY 2.0.
- Archimedes and the Roman soldier, eighteenth-century mosaic in the ancient style: source page · public domain.
- Archimedes moving the Earth with a lever, engraving from the Mechanics Magazine (London, 1824): source page · public domain.
- Latin manuscript of On the Sphere and Cylinder (c. 1270): source page · public domain.
- Cicero discovering the tomb of Archimedes, painting by Pierre-Henri de Valenciennes (1787): source page · public domain.
- A leaf of the Archimedes palimpsest, The Walters Art Museum: source page · CC BY 3.0.
- The screw of Archimedes, illustration from Chambers’s Twentieth Century Dictionary (1908): source page · public domain.
- The Fields Medal, photo by Stefan Zachow for the International Mathematical Union: source page · public domain.
Figures made for the blog
The cover and the four interactive figures (the lever, the polygons that enclose π, the triangles of the quadrature of the parabola and the spiral) are original illustrations, with text in each of the site’s languages.
Record
The file data/arquimedes_imagens.json records the source, licence, verification date and SHA-256 hash of each downloaded image. The historical sources for each topic appear at the end of each post.