PHYSICIST

Joseph von Fraunhofer

1787 - 1826

Photo of Joseph von Fraunhofer

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Joseph Ritter von Fraunhofer (; German: [ˈfraʊnˌhoːfɐ]; 6 March 1787 – 7 June 1826) was a German physicist and optical lens manufacturer. He made optical glass, an achromatic telescope, and objective lenses. He developed diffraction grating and also invented the spectroscope. Read more on Wikipedia

Since 2007, the English Wikipedia page of Joseph von Fraunhofer has received more than 380,454 page views. His biography is available in 63 different languages on Wikipedia (up from 60 in 2019). Joseph von Fraunhofer is the 118th most popular physicist (down from 103rd in 2019), the 375th most popular biography from Germany (up from 380th in 2019) and the 16th most popular German Physicist.

Joseph von Fraunhofer is most famous for his discovery of the dark lines in the spectrum of the sun's light. These lines are now known as Fraunhofer lines.

Memorability Metrics

  • 380k

    Page Views (PV)

  • 67.96

    Historical Popularity Index (HPI)

  • 63

    Languages Editions (L)

  • 10.11

    Effective Languages (L*)

  • 3.26

    Coefficient of Variation (CV)

Page views of Joseph von Fraunhofers by language

Over the past year Joseph von Fraunhofer has had the most page views in the with 33,227 views, followed by German (29,216), and Spanish (7,258). In terms of yearly growth of page views the top 3 wikpedia editions are Romanian (20,900.00%), Mingrelian (247.06%), and Haitian (102.77%)

Among PHYSICISTS

Among physicists, Joseph von Fraunhofer ranks 118 out of 851. Before him are Peter Debye, Anders Jonas Ångström, Joseph Henry, Walter Houser Brattain, Arnold Sommerfeld, and Paul Langevin. After him are K. Alex Müller, James Franck, Isamu Akasaki, Javier Solana, Isidor Isaac Rabi, and Julius von Mayer.

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Contemporaries

Among people born in 1787, Joseph von Fraunhofer ranks 2. Before him is Louis Daguerre. After him are Shaka, Vuk Karadžić, François Guizot, Jan Evangelista Purkyně, Maria Ludovika of Austria-Este, Rasmus Rask, Guillaume Henri Dufour, Alfred I, Prince of Windisch-Grätz, Franz Xaver Gruber, and Alexander Sergeyevich Menshikov. Among people deceased in 1826, Joseph von Fraunhofer ranks 6. Before him are Thomas Jefferson, Carl Maria von Weber, John Adams, Giuseppe Piazzi, and John VI of Portugal. After him are René Laennec, Philippe Pinel, Maria Leopoldina of Austria, Joseph Proust, Stamford Raffles, and Elizabeth Alexeievna.

Others Born in 1787

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Others Deceased in 1826

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In Germany

Among people born in Germany, Joseph von Fraunhofer ranks 375 out of 7,253. Before him are Duchess Helene in Bavaria (1834), Heinrich Cornelius Agrippa (1486), Otto Heinrich Warburg (1883), Hans Lippershey (1570), Chlodio (393), and Peter Behrens (1868). After him are Joachim Löw (1960), Otto Lilienthal (1848), Caroline Herschel (1750), Werner Herzog (1942), Rudolf Carnap (1891), and Albrecht Kossel (1853).

Others born in Germany

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Among PHYSICISTS In Germany

Among physicists born in Germany, Joseph von Fraunhofer ranks 16. Before him are J. Hans D. Jensen (1907), Johannes Stark (1874), Otto von Guericke (1602), Carl Zeiss (1816), Wilhelm Eduard Weber (1804), and Ernst Ruska (1906). After him are James Franck (1882), Julius von Mayer (1814), Arno Allan Penzias (1933), Ernst Abbe (1840), Walther Bothe (1891), and Rudolf Mössbauer (1929).

German born Physicists

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