Euler's Eyes
2026-10-27
History of Mathematics
Page 213 of 270
Image credits
Historical images and photographs
All come from Wikimedia Commons. We use the thumbnails provided by Commons; the Kirkwood etching was reduced in size and the conical refraction diagram had its colour palette reduced, with no other editing.
- Portrait of Hamilton, Library of Congress: source page · public domain.
- Oil portrait of Hamilton, unknown author: source page · public domain.
- Etching by J. Kirkwood, Wellcome Collection: source page · CC BY 4.0.
- Irish stamp of 1943: source page · public domain.
- The plaque on Broom Bridge, photo by Cone83: source page · CC BY-SA 4.0.
- Broom Bridge, photo by Johnflan: source page · CC BY-SA 4.0.
- Dunsink Observatory, photo by David Malone: source page · CC BY-SA 2.5.
- Trinity College Dublin, photo by JoachimKohler-HB: source page · CC BY-SA 4.0.
- Wordsworth on Helvellyn, painting by Benjamin Robert Haydon: source page · public domain.
- Internal conical refraction, by Thomas Preston and William Edward Thrift: source page · public domain.
- Replica of the Icosian game at the Matemateca IME-USP, Estes Objethos Atelier, photo by Alisson Ricardo: source page · CC BY-SA 4.0.
Figures made for the blog
The cover and the interactive figures for the pendulum’s phase space, rotations with quaternions and the Icosian game were made for this trail and work in all four languages of the site.
Record
The file data/hamilton_imagens.json records the origin, the licence, the date of verification and the SHA-256 hash of each downloaded image. The historical sources for each topic appear at the end of each post.
All topics on William Rowan Hamilton · ← The legacy of William Rowan Hamilton