発明家

Ralph Hartley

1888 - 1970

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ラルフ・ハートレー（Ralph Vinton Lyon Hartley、1888年11月30日 - 1970年5月1日）は、アメリカの電子工学研究者。ハートレー発振回路やハートレー変換を発明し、情報理論の構築にも寄与した。 ウィキペディアで詳細を読む

彼の伝記はウィキペディアで21言語で利用可能です（2024年の19言語から増加）。Ralph Hartleyは、最も人気のある発明家の中で第290位（2024年の第281位から順位を下げ）、アメリカ合衆国人物の伝記の中で第5869位（2019年の第5041位から順位を下げ）、また最も人気のあるアメリカ合衆国人発明家の中で第75位に位置しています。

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Among 発明家

Among 発明家, Ralph Hartley ranks 290 out of 426. Before him are Joseph Whitworth, Beulah Louise Henry, Genrich Altshuller, Ottomar Anschütz, Cyrus McCormick, and Mark Rober. After him are Petrache Poenaru, Frank Zamboni, Yoshiro Nakamatsu, Max Valier, Samuel Morland, and Jacob Perkins.

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Contemporaries

Among people born in 1888, Ralph Hartley ranks 153. Before him are Milán Füst, Konstantinos Tsiklitiras, Tirumalai Krishnamacharya, Beulah Louise Henry, Barry Fitzgerald, and Frances Marion. After him are Jinichi Kusaka, Mohammed Hussein Heikal, Marcel Jouhandeau, Mary Eristavi, Vladimir Baranov-Rossine, and Elsa Brändström. Among people deceased in 1970, Ralph Hartley ranks 166. Before him are Soledad Miranda, Marietta Blau, Max Abegglen, Fritz Kortner, William Daniels, and Tammi Terrell. After him are Adolf Wiklund, Alfred Sturtevant, Jérôme Carcopino, Alfréd Rényi, Parashqevi Qiriazi, and William Slim, 1st Viscount Slim.

Others Born in 1888

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In アメリカ合衆国

Among people born in アメリカ合衆国, Ralph Hartley ranks 5,869 out of NaN. Before him are Bill Tuttle (1882), Titus Welliver (1962), Haskell Curry (1900), Sam J. Jones (1954), Richard N. Frye (1920), and Walter Sutton (1877). After him are Ernest Fenollosa (1853), Gus Hall (1910), Arleigh Burke (1901), Alvan Graham Clark (1832), Michael Cole (1968), and Mark Tornillo (1954).

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Among 発明家 In アメリカ合衆国

Among 発明家 born in アメリカ合衆国, Ralph Hartley ranks 75. Before him are Robert Cornelius (1809), Lester Allan Pelton (1829), Valerie Thomas (1943), Beulah Louise Henry (1888), Cyrus McCormick (1809), and Mark Rober (1980). After him are Frank Zamboni (1901), Jacob Perkins (1766), L. L. Langstroth (1810), Marion Donovan (1917), Wilson Greatbatch (1919), and Whitcomb L. Judson (1846).

アメリカ合衆国人 born 発明家

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