• Thumbnail for Jean Richer
    Expedition of Jean Richer to Cayenne (1672-1673)". Isis. 34 (2): 117–128. doi:10.1086/347762. ISSN 0021-1753. Re-published as: Richer, Jean (1729). "Observations...
    7 KB (898 words) - 10:01, 14 March 2024
  • Richer, or Richers, is a surname, and may refer to: Richer, Count in Luihgau and Hainaut (died 972) Richer (bishop of Verdun) (fl. 1089–1107) Bob Richer...
    1 KB (197 words) - 15:44, 25 December 2023
  • Thumbnail for Stéphane Richer
    Joseph Jean-Jacques Richer (French pronunciation: [stefan ʁiʃe]; born June 7, 1966) is a Canadian former professional ice hockey right winger. Richer was...
    13 KB (875 words) - 22:56, 22 April 2024
  • Thumbnail for Seconds pendulum
    French astronomer Jean Richer had measured the 0.3% difference in length between Cayenne (in what is now French Guiana) and Paris. Jean Richer and Giovanni...
    32 KB (3,753 words) - 17:09, 21 April 2024
  • Thumbnail for Pendulum
    of gravity. During his expedition to Cayenne, French Guiana in 1671, Jean Richer found that a pendulum clock was 2+1⁄2 minutes per day slower at Cayenne...
    122 KB (14,432 words) - 11:39, 18 April 2024
  • Thumbnail for History of the metre
    French astronomer Jean Richer had measured the 0.3% difference in length between Cayenne (in French Guiana) and Paris. Jean Richer and Giovanni Domenico...
    79 KB (14,886 words) - 20:46, 9 April 2024
  • Thumbnail for Longitude
    111–122. doi:10.3390/applmech1020008. Olmsted, J.W. (1960). "The Voyage of Jean Richer to Acadia in 1670: A Study in the Relations of Science and Navigation...
    35 KB (4,148 words) - 23:48, 2 April 2024
  • Thumbnail for Winged Victory of Samothrace
    visible from the bottom of the valley. Another hypothesis was proposed by Jean Richer who observed that the ship on which the statue is placed represents the...
    41 KB (5,784 words) - 10:03, 29 March 2024
  • Thumbnail for Astronomical unit
    good measurement, with his various errors cancelling each other out. Jean Richer and Giovanni Domenico Cassini measured the parallax of Mars between Paris...
    53 KB (5,375 words) - 15:49, 23 April 2024
  • Thumbnail for Blaise de Vigenère
    books, including: 1573: Les Chroniques et annales de Poloigne. Paris: Jean Richer. Available on Gallica. 1573: La description du royaume de Poloigne, &...
    14 KB (1,654 words) - 03:03, 9 April 2024