Klaus Fuchs

1911 - 1988

Photo of Klaus Fuchs

Icon of person Klaus Fuchs

Klaus Emil Julius Fuchs (29 December 1911 – 28 January 1988) was a German theoretical physicist and atomic spy who supplied information from the American, British and Canadian Manhattan Project to the Soviet Union during and shortly after World War II. While at the Los Alamos National Laboratory, Fuchs was responsible for many significant theoretical calculations relating to the first nuclear weapons and, later, early models of the hydrogen bomb. After his conviction in 1950, he served nine years in prison in the United Kingdom, then migrated to East Germany where he resumed his career as a physicist and scientific leader. The son of a Lutheran pastor, Fuchs attended the University of Leipzig, where his father was a professor of theology, and became involved in student politics, joining the student branch of the Social Democratic Party of Germany (SPD), and the Reichsbanner Schwarz-Rot-Gold, the SPD's paramilitary organisation. Read more on Wikipedia

Since 2007, the English Wikipedia page of Klaus Fuchs has received more than 1,593,535 page views. His biography is available in 36 different languages on Wikipedia (up from 35 in 2019). Klaus Fuchs is the 247th most popular physicist (up from 267th in 2019), the 960th most popular biography from Germany (down from 952nd in 2019) and the 33rd most popular German Physicist.

Klaus Fuchs was a German physicist who was convicted of spying for the Soviet Union in the 1940s. He was a member of the British team that worked on the Manhattan Project to develop the atomic bomb. He was arrested in 1950 and sentenced to 14 years in prison.

Memorability Metrics

  • 1.6M

    Page Views (PV)

  • 69.91

    Historical Popularity Index (HPI)

  • 36

    Languages Editions (L)

  • 5.03

    Effective Languages (L*)

  • 3.66

    Coefficient of Variation (CV)

Page views of Klaus Fuchs by language


Among physicists, Klaus Fuchs ranks 247 out of 721Before him are Pierre-Gilles de Gennes, Nevill Francis Mott, Julian Schwinger, Leo Esaki, Fritjof Capra, and Patrick Blackett. After him are Clifford Shull, Bertram Brockhouse, Herbert Kroemer, John Hasbrouck Van Vleck, Giovanni Battista Venturi, and John Kendrew.

Most Popular Physicists in Wikipedia

Go to all Rankings


Among people born in 1911, Klaus Fuchs ranks 54Before him are Ernesto Sabato, Gustav Wagner, William Howard Stein, Bruno Kreisky, Robert Taylor, and Stanisława Walasiewicz. After him are Sergey Sokolov, Karl Silberbauer, Herta Oberheuser, Niels Kaj Jerne, Alfred Naujocks, and Feodor Lynen. Among people deceased in 1988, Klaus Fuchs ranks 25Before him are John Holmes, Kim Philby, Clifford D. Simak, Gert Fröbe, Paul Grice, and Hiroaki Sato. After him are Abdul Basit 'Abd us-Samad, Tibor Sekelj, André Frédéric Cournand, Muzafer Sherif, Valerie Solanas, and Muhammad Zia-ul-Haq.

Others Born in 1911

Go to all Rankings

Others Deceased in 1988

Go to all Rankings

In Germany

Among people born in Germany, Klaus Fuchs ranks 960 out of 5,289Before him are Eugen Dühring (1833), Paul Johann Anselm Ritter von Feuerbach (1775), Ernst Barlach (1870), Bernd Schuster (1959), Stefan Lochner (1410), and Helmut Rahn (1929). After him are Georg Wittig (1897), August Wilhelm von Hofmann (1818), Joachim Frank (1940), Henry II, Duke of Austria (1107), Mary Wigman (1886), and Ernst Hanfstaengl (1887).

Among PHYSICISTS In Germany

Among physicists born in Germany, Klaus Fuchs ranks 33Before him are Hans Georg Dehmelt (1922), Polykarp Kusch (1911), Wolfgang Paul (1913), Carl von Linde (1842), Gerd Binnig (1947), and Max Delbrück (1906). After him are Herbert Kroemer (1928), Ludwig Prandtl (1875), Rainer Weiss (1932), Theodor W. Hänsch (1941), Carl Friedrich von Weizsäcker (1912), and Jack Steinberger (1921).