1875 in science GudangMovies21 Rebahinxxi LK21

      The year 1875 in science and technology involved some significant events, listed below.


      Chemistry


      Gallium is discovered spectroscopically by French chemist Paul Emile Lecoq de Boisbaudran. Later in this year he obtains the free metal by electrolysis of its hydroxide and names it. This is the first of Dmitri Mendeleev's predicted elements to be identified.
      Phenylhydrazine is discovered by Hermann Emil Fischer.
      Swiss chocolatier Daniel Peter working with Henri Nestlé's company perfects a method of manufacturing milk chocolate using condensed milk.


      Earth sciences


      March – Challenger expedition first records Challenger Deep.


      Genetics


      Francis Galton publishes The History of Twins, as a criterion of the relative powers of nature and nurture.


      Medicine


      March 1 – The Hospital for Sick Children (Toronto) is founded in Canada.
      The weekly medical journal, Deutsche Medizinische Wochenschrift, is established in Germany by Paul Börner.


      Metrology


      May 20 – International Bureau of Weights and Measures established by signature of the Metre Convention in Paris.


      Awards


      Copley Medal: August Wilhelm Hofmann
      Wollaston Medal for geology: Laurent-Guillaume de Koninck


      Births


      January 10 – Issai Schur (died 1941), Belarusian-born Jewish mathematician
      January 14 – Albert Schweitzer (died 1965), German-born French medical missionary
      February 4 – Ludwig Prandtl (died 1953), German physicist
      March 14 – Fran Jesenko (died 1932), Slovene botanist and plant geneticist
      June 20 – Reginald Punnett (died 1967), English geneticist
      June 28 – Henri Lebesgue (died 1941), French mathematician
      July 26 – Carl Jung (died 1961), Swiss psychiatrist
      September 11 – Edith Humphrey (died 1978), English chemist
      October 23 – Gilbert N. Lewis (died 1946), American chemist; first to isolate deuterium
      November 12 – Stanislaus von Prowazek, born Stanislav Provázek (died 1915), Bohemian parasitologist


      Deaths


      February 22 – Charles Lyell (born 1797), Scottish-born geologist
      February 28 – Robert Willis, English mechanical engineer, phonetician and architectural historian (born 1800)
      March 7 – John Edward Gray (born 1800), English taxonomist
      March 31 – Friedrich Julius Richelot (born 1808), German mathematician
      April 11 – Heinrich Schwabe (born 1789), German astronomer
      October 2 – Petrache Poenaru (died 1799), Romanian inventor
      October 19 – Charles Wheatstone (born 1802), English inventor
      November 27 – Richard Carrington (born 1826), English astronomer


      References

    Kata Kunci Pencarian:

    1875 in science
    Science and Health 1875 – The Bookmark

    Science and Health 1875 – The Bookmark

    Issue Archive - 1875 | Scientific American

    Issue Archive - 1875 | Scientific American

    Notes and Queries - August 21, 1875 | Scientific American

    Notes and Queries - August 21, 1875 | Scientific American

    Items | Science

    Items | Science

    [Index to] Volume V, January-June, 1897 | Science

    [Index to] Volume V, January-June, 1897 | Science

    Science Record for 1876 | Scientific American

    Science Record for 1876 | Scientific American

    Popular science monthly (1872 Stock Photo - Alamy

    Popular science monthly (1872 Stock Photo - Alamy

    Science Record for 1875 | Scientific American

    Science Record for 1875 | Scientific American

    Issue Archive - 1875 | Scientific American

    Issue Archive - 1875 | Scientific American

    Issue Archive - 1875 | Scientific American

    Issue Archive - 1875 | Scientific American

    September 25, 1875 - Scientific American

    September 25, 1875 - Scientific American

    Items | Science

    Items | Science