Amici, Giovanni Battista

Amici, Giovanni Battista

▪ Italian astronomer
born March 25, 1786, Modena, Duchy of Modena [Italy]
died April 10, 1863, Florence

      astronomer and optician who made important improvements in the mirrors of reflecting telescopes and also developed prisms for use in refracting spectroscopes (instruments used to separate light into its spectral components).

      Amici served as professor of mathematics at the University of Modena from 1815 to 1825 and then became astronomer to the Grand Duke of Tuscany and director of the observatory at the Royal Museum in Florence, where he also lectured at the museum of natural history. He made major advancements in compound- microscope design and introduced (1840) the oil-immersion technique, in which the objective lens is immersed in a drop of oil placed atop the specimen under observation in order to minimize light aberrations.

      His name is most often associated with improvements in the microscope and reflecting telescope, but he also put his instruments to good use. His observations of Jupiter's satellites and certain double stars were highly esteemed. Using an improved micrometer of his own design, he made accurate measurements of the polar and equatorial diameters of the Sun. With his improved compound microscope he made discoveries about the circulation of sap in plants and the processes of plant reproduction.

* * *

Universalium. 2010.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • Giovanni Battista Amici — Nacimiento …   Wikipedia Español

  • Giovanni Battista — Giovanni ist ein Vorname und Familienname. Inhaltsverzeichnis 1 Herkunft und Bedeutung 2 Bekannte Namensträger 2.1 Vornamen 2.2 Nachnamen 2.3 Pseudonym …   Deutsch Wikipedia

  • Giovanni Battista Amici — (* 25. März 1786 in Modena, Italien; † 10. April 1863 in Florenz, Italien) war ein italienischer Astronom, Optiker und Physiker …   Deutsch Wikipedia

  • Giovanni Battista Amici — Pour les articles homonymes, voir Amici. Giovanni Battista Amici Giovanni Battista Amici est un astronome et un microscopiste italien …   Wikipédia en Français

  • Giovanni Battista Donati — Giambattista Donati (auch Giovanni Battista Donati) (* 16. Dezember 1826 in Pisa; † 19. September 1873 in Florenz) war ein italienischer Astronom. Donati begann nach seinem Studium an der Universität von Pisa seine wissenschaftliche Laufbahn 1852 …   Deutsch Wikipedia

  • Giovanni Battista — Giovanni Battista, was a common Italian given name (see Battista for those with the surname) in the 16th 18th centuries, which in English means John the Baptist . Common nicknames include Giambattista, Gianbattista or Giovambattista. The Genoese… …   Wikipedia

  • Giovanni Battista Amici — (March 25, 1786 April 10 1863) was an Italian astronomer and microscopist.Amici was born in Modena, Italy. After studying at Bologna, he became professor of mathematics at Modena, and in 1831 was appointed inspector general of studies in the… …   Wikipedia

  • Giovanni Battista Donati — Naissance 16 décembre 1826 Pise (Italie) Décès 20 septembre …   Wikipédia en Français

  • Giovanni Battista Balbis — Nacimiento …   Wikipedia Español

  • Giovanni Battista Balbis — Giovanni Battista Balbis, né à Moretta (Province de Cuneo) le 17 novembre 1765, mort à Turin en 1831, fut un botaniste, médecin et homme politique italien. Sommaire 1 Biographie 1.1 Les premières années …   Wikipédia en Français

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”