Harvey Fletcher

1884 - 1981

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Harvey Fletcher (September 11, 1884 – July 23, 1981) was an American physicist. Known as the "father of stereophonic sound", he is credited with the invention of the 2-A audiometer and an early electronic hearing aid. He was an investigator into the nature of speech and hearing, and made contributions in acoustics, electrical engineering, speech, medicine, music, atomic physics, sound pictures, and education. Read more on Wikipedia

Since 2007, the English Wikipedia page of Harvey Fletcher has received more than 134,481 page views. His biography is available in 17 different languages on Wikipedia (up from 15 in 2019). Harvey Fletcher is the 726th most popular physicist (down from 696th in 2019), the 8,506th most popular biography from United States (up from 8,661st in 2019) and the 159th most popular American Physicist.

Memorability Metrics

  • 130k

    Page Views (PV)

  • 45.57

    Historical Popularity Index (HPI)

  • 17

    Languages Editions (L)

  • 4.06

    Effective Languages (L*)

  • 2.56

    Coefficient of Variation (CV)

Page views of Harvey Fletchers by language

Over the past year Harvey Fletcher has had the most page views in the with 14,257 views, followed by Chinese (1,390), and Japanese (1,355). In terms of yearly growth of page views the top 3 wikpedia editions are Malagasy (109.26%), Polish (83.25%), and Finnish (52.26%)


Among physicists, Harvey Fletcher ranks 726 out of 851Before him are Mark Oliphant, Pief Panofsky, Roald Sagdeev, Nikolay Umov, John Joly, and Howard P. Robertson. After him are Rudolf Haag, Henrik Svensmark, Julian Barbour, C. R. Hagen, Joseph Polchinski, and Walter Gordon.

Most Popular Physicists in Wikipedia

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Among people born in 1884, Harvey Fletcher ranks 219Before him are Leon Schlesinger, Armand Massard, Max Taut, Bessie Barriscale, José Patricio Guggiari, and Georg Zacharias. After him are Harald Hansen, Georg Selenius, Alfred Carlton Gilbert, Hugh Walpole, Earl Derr Biggers, and James Cruze. Among people deceased in 1981, Harvey Fletcher ranks 222Before him are Jakob Bender, Hermann Pilnik, Antero Kivi, Antonio Suárez, Stefanie Clausen, and Nikolay Timofeev-Ressovsky. After him are Geirr Tveitt, Ann Harding, Dan Coe, Bronisław Malinowski, Oumarou Ganda, and Giuseppe Tosi.

Others Born in 1884

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Others Deceased in 1981

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In United States

Among people born in United States, Harvey Fletcher ranks 8,506 out of 20,380Before him are American Horse (1840), Richie Kotzen (1970), Kate McKinnon (1984), Daniel Chester French (1850), Marshall Harvey Stone (1903), and Dave DeBusschere (1940). After him are Criss Angel (1967), Shayla LaVeaux (1969), Bobby Hebb (1938), Lisa Fischer (1958), Rick Berman (1945), and Bill Haywood (1869).

Among PHYSICISTS In United States

Among physicists born in United States, Harvey Fletcher ranks 159Before him are Albert W. Hull (1880), Nicholas Metropolis (1915), Bill Nye (1955), Lisa Randall (1962), Arthur Wightman (1922), and Howard P. Robertson (1903). After him are C. R. Hagen (1937), Joseph Polchinski (1954), Seymour Benzer (1921), William Stanley Jr. (1858), Frank Benford (1883), and Conyers Herring (1914).