ENGINEER

Valdemar Poulsen

1869 - 1942

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Valdemar Poulsen (23 November 1869 – 23 July 1942) was a Danish engineer who developed a magnetic wire recorder called the telegraphone in 1898. He also made significant contributions to early radio technology, including the first continuous wave radio transmitter, the Poulsen arc, which was used for a majority of the earliest audio radio transmissions, before being supplanted by the development of vacuum-tube transmitters. Read more on Wikipedia

His biography is available in different languages on Wikipedia. Valdemar Poulsen is the 121st most popular engineer (down from 94th in 2019), the 226th most popular biography from Denmark (down from 186th in 2019) and the 2nd most popular Danish Engineer.

Valdemar Poulsen is most famous for inventing the telegraphone, a device that recorded sound as a pattern of magnetized iron wires on a long paper tape.

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Among ENGINEERS

Among engineers, Valdemar Poulsen ranks 121 out of 389. Before him are Erich Topp, Eupalinos, Erik Dahlbergh, Henry Darcy, Borys Paton, and Alexander Cunningham. After him are Yevgeny Dragunov, Ivan Sechenov, Rory Byrne, Guenther Steiner, Nikolai Polikarpov, and Alexander Lippisch.

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Contemporaries

Among people born in 1869, Valdemar Poulsen ranks 70. Before him are Gerrit Smith Miller, Grand Duke Sergei Mikhailovich of Russia, Hans Poelzig, Washington Luís, Otto Nordenskjöld, and Ulrich von Brockdorff-Rantzau. After him are Prince Ferdinand Pius, Duke of Calabria, Algernon Blackwood, Ramón Menéndez Pidal, Paul Émile Chabas, Arthur Rostron, and Slobodan Jovanović. Among people deceased in 1942, Valdemar Poulsen ranks 88. Before him are Alexander Belyaev, Georges Politzer, Alois Eliáš, Walther von Lüttwitz, Titus Brandsma, and Lidia Zamenhof. After him are Vera Figner, Walter Sickert, Cesare Mori, István Horthy, Konstantin Balmont, and Atsushi Nakajima.

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In Denmark

Among people born in Denmark, Valdemar Poulsen ranks 226 out of 1,032. Before him are Frederick VIII, Duke of Schleswig-Holstein (1829), Kurt Westergaard (1935), Inger Christensen (1935), Conrad Malte-Brun (1775), Peter Andreas Hansen (1795), and Eugenius Warming (1841). After him are Princess Caroline of Denmark (1793), Hans Christian Lumbye (1810), Louise Rasmussen (1815), Wilhelm Marstrand (1810), Augusta of Denmark (1580), and Christian Mortensen (1882).

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Among ENGINEERS In Denmark

Among engineers born in Denmark, Valdemar Poulsen ranks 2. Before him are Bjarne Stroustrup (1950).

Danish born Engineers

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