• Thumbnail for Friedrich Risner
    Friedrich Risner (c.1533 – 15 September 1580) (in Latin Fridericus Risnerus) was a German mathematician from Hersfeld, Hesse. He was an assistant to Petrus...
    4 KB (347 words) - 17:25, 12 May 2024
  • Risner is a surname. Notable people with the surname include: Dalton Risner (born 1995), American football player Friedrich Risner (c.1533–1580), German...
    366 bytes (84 words) - 18:02, 10 February 2023
  • Thumbnail for Vitello
    Optics; De aspectibus or Perspectivae), and both were printed in the Friedrich Risner edition Opticae thesaurus (Basel, 1572). Vitello's Perspectiva, which...
    8 KB (775 words) - 20:42, 23 October 2024
  • Thumbnail for Camera obscura
    al-Haytham and Witelo, Opticae thesauru (1572), German mathematician Friedrich Risner proposed a portable camera obscura drawing aid; a lightweight wooden...
    77 KB (8,477 words) - 10:24, 3 November 2024
  • Thumbnail for Book of Optics
    work was influential during the Middle Ages.: 86.  It was printed by Friedrich Risner in 1572, as part of his collection Opticae thesaurus. This included...
    19 KB (2,176 words) - 14:27, 23 October 2024
  • Thumbnail for Ibn al-Haytham
    Italian vernacular, under the title De li aspecti. It was printed by Friedrich Risner in 1572, with the title Opticae thesaurus: Alhazeni Arabis libri septem...
    135 KB (15,027 words) - 17:32, 27 October 2024
  • English chorister and agriculturalist (born c. 1524) September 15 – Friedrich Risner, German mathematician (born c. 1533) Giovanni Filippo Ingrassia, Sicilian...
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  • Thumbnail for Bad Hersfeld
    monastery Lampert von Hersfeld (c. 1028 – c. 1085), chronicler and abbot Friedrich Risner (c. 1533–1580), mathematician Heinrich Gutberleth (1572–1635), educator...
    50 KB (6,217 words) - 02:13, 19 October 2024
  • Aibidil Gaoidheilge agus Caiticiosma (first printing in Irish) 1572 Friedrich Risner – Opticae thesaurus Turba Philosophorum 1560–1575 Dawlat Wazir Bahram...
    41 KB (4,710 words) - 03:20, 12 July 2024
  • Hasenöhrl Friedrich Hopfner Friedrich Hund Friedrich Kohlrausch Friedrich Kottler Friedrich Paschen Friedrich Risner Friedrich Robert Helmert Friedwardt...
    14 KB (1,545 words) - 17:52, 15 September 2024