New games! PlayTrivia andBirthle.


James Cronin

1931 - 2016

Photo of James Cronin

Icon of person James Cronin

James Watson Cronin (September 29, 1931 – August 25, 2016) was an American particle physicist.Cronin was born in Chicago, Illinois, and attended Southern Methodist University in Dallas, Texas. He and co-researcher Val Logsdon Fitch were awarded the 1980 Nobel Prize in Physics for a 1964 experiment that proved that certain subatomic reactions do not adhere to fundamental symmetry principles. Specifically, they proved, by examining the decay of kaons, that a reaction run in reverse does not merely retrace the path of the original reaction, which showed that the interactions of subatomic particles are not invariant under time reversal. Read more on Wikipedia

Since 2007, the English Wikipedia page of James Cronin has received more than 185,316 page views. His biography is available in 62 different languages on Wikipedia. James Cronin is the 176th most popular physicist (up from 205th in 2019), the 796th most popular biography from United States (up from 947th in 2019) and the 31st most popular American Physicist.

James Cronin is most famous for being a professional rugby player.

Memorability Metrics

  • 190k

    Page Views (PV)

  • 63.69

    Historical Popularity Index (HPI)

  • 62

    Languages Editions (L)

  • 17.81

    Effective Languages (L*)

  • 3.09

    Coefficient of Variation (CV)

Page views of James Cronins by language


Among physicists, James Cronin ranks 176 out of 717Before him are Igor Kurchatov, Martinus J. G. Veltman, Hannes Alfvén, Pyotr Kapitsa, Edward Mills Purcell, and Arthur Ashkin. After him are Charles H. Townes, Emilio Segrè, Edme Mariotte, Robert Hofstadter, Klaus von Klitzing, and Louis Néel.

Most Popular Physicists in Wikipedia

Go to all Rankings


Among people born in 1931, James Cronin ranks 38Before him are João Gilberto, D. B. Cooper, Aldo Rossi, Syukuro Manabe, Johannes Rau, and Martinus J. G. Veltman. After him are James Earl Jones, Ike Turner, Larry Hagman, Caterina Valente, Kakuichi Mimura, and Khieu Samphan. Among people deceased in 2016, James Cronin ranks 37Before him are Carrie Fisher, Nancy Reagan, Věra Čáslavská, Bernardo Provenzano, Gene Wilder, and George Gaynes. After him are Walter Scheel, Hilary Putnam, Nikolaus Harnoncourt, Michael Cimino, Carlo Azeglio Ciampi, and René Angélil.

Others Born in 1931

Go to all Rankings

Others Deceased in 2016

Go to all Rankings

In United States

Among people born in United States, James Cronin ranks 796 out of 18,182Before him are Arthur Ashkin (1922), Laurence Fishburne (1961), George Foreman (1949), H. H. Holmes (1861), John Reed (1887), and Charlie Sheen (1965). After him are Sam Peckinpah (1925), Lee Marvin (1924), Charles H. Townes (1915), Joseph Campbell (1904), Robert Solow (1924), and Danny Glover (1946).

Among PHYSICISTS In United States

Among physicists born in United States, James Cronin ranks 31Before him are Benjamin Thompson (1753), James Rainwater (1917), Leon Cooper (1930), Robert H. Goddard (1882), Edward Mills Purcell (1912), and Arthur Ashkin (1922). After him are Charles H. Townes (1915), Robert Hofstadter (1915), Norman Foster Ramsey Jr. (1915), John Archibald Wheeler (1911), John L. Hall (1934), and Frederick Reines (1918).