• Thumbnail for Kater's pendulum
    plane by an ingenious process of optical amplification. Isaac-Charles Élisée Cellérier, a mathematician from Geneva and Charles Sanders Peirce would independently...
    27 KB (3,623 words) - 19:42, 18 March 2024
  • Thumbnail for Metre
    Switzerland by Emile Plantamour, Charles Sanders Peirce and Isaac-Charles Élisée Cellérier (8.01.1818 – 2.10.1889), a Genevan mathematician soon independently...
    105 KB (11,276 words) - 07:12, 16 May 2024
  • Thumbnail for History of the metre
    Switzerland by Emile Plantamour, Charles Sanders Peirce and Isaac-Charles Élisée Cellérier (8.01.1818 – 2.10.1889), a Genevan mathematician soon independently...
    79 KB (14,886 words) - 16:12, 15 May 2024
  • Thumbnail for History of geodesy
    plane by an ingenious optical amplification process. Isaac-Charles Élisée Cellérier, a Genevan mathematician and Charles Sanders Peirce would independently...
    100 KB (12,808 words) - 16:18, 18 May 2024