• Thumbnail for Gustave de Ponton d'Amécourt
    Gustave de Ponton d'Amécourt (16 August 1825 – 20 January 1888, Trilport, France) was a French inventor, archaeologist, and numismatist. Gustave de Ponton...
    9 KB (881 words) - 17:35, 26 April 2024
  • Thumbnail for Treasure of Imphy
    France. The coins, all silver French deniers, were purchased by Gustave de Ponton d'Amécourt, and were preserved. Their study contributed to the knowledge...
    1 KB (128 words) - 14:20, 26 March 2024
  • Thumbnail for Société française de numismatique
    Ernest Gariel, Ernest Lecomte, Abbé Marchant, Jules Roman, and Gustave de Ponton d'Amécourt, who became its first president. The society initially operated...
    6 KB (675 words) - 20:43, 21 March 2024
  • Thumbnail for Helicopter
    helicopter is adapted from the French word hélicoptère, coined by Gustave Ponton d'Amécourt in 1861, which originates from the Greek helix (ἕλιξ), genitive...
    101 KB (10,817 words) - 15:19, 10 May 2024
  • Thumbnail for Early flying machines
    collaborate on helicopter designs, of which there were many. In 1863 Gustave de Ponton d'Amécourt constructed a model using the established counter-rotating rotors...
    113 KB (14,967 words) - 12:09, 19 March 2024
  • Thumbnail for Giffard dirigible
    Météorologique de France (May 1853), Paris Gauthier-Villars 1853 in Collection de mémoires sur la locomotion aérienne sans ballons published by Gustave Ponton d'Amécourt...
    5 KB (386 words) - 05:34, 4 February 2024