1690 in science

The year 1690 in science and technology involved some significant events.

List of years in science (table)

AstronomyEdit

GeographyEdit

BotanyEdit

MathematicsEdit

  • Izeki Tomotoki (井関 知辰) of Osaka publishes Sampo-Hakki (算法発揮), in which he gives the resultant and the Laplace expansion of the determinant for the n×n case. At about this date, Tanaka Yoshizane (田中 由真) also describes and applies the resultant, in Sampo-Funkai (算法紛解).
  • Michel Rolle publishes Traité d'Algebre, in which he gives the first published description in Europe of Gaussian elimination.

MedicineEdit

  • Justine Siegemund publishes Die Chur-Brandenburgische Hof-Wehemutter ("The Court Midwife"), the first medical textbook in German written by a woman.

TechnologyEdit

BirthsEdit

DeathsEdit