GEMA: Birthplace of German Radar and Sonar Harry von Kroge

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Published: January 1st 2000

Kindle Edition

206 pages


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GEMA: Birthplace of German Radar and Sonar  by  Harry von Kroge

GEMA: Birthplace of German Radar and Sonar by Harry von Kroge
January 1st 2000 | Kindle Edition | PDF, EPUB, FB2, DjVu, AUDIO, mp3, RTF | 206 pages | ISBN: | 8.42 Mb

In Germany, the development of the first technologies of sonar and radar were interrelated. Following Christian Hülsmeyers forgotten invention of the Telemobiloskop in 1904, two Berlin engineers, Paul Günther Erbslöh and Hans-Karl von Willisen,MoreIn Germany, the development of the first technologies of sonar and radar were interrelated. Following Christian Hülsmeyers forgotten invention of the Telemobiloskop in 1904, two Berlin engineers, Paul Günther Erbslöh and Hans-Karl von Willisen, developed and built devices to locate targets accurately by reflections with underwater sound and radio waves.

In 1934, they found their own company for this work, called Gesellschaft für Elektroakustische und Mechanische Apparate (GEMA), which became the birthplace of their famous Freya air-warning and Seetakt ocean-surveillance radars.Harry von Kroge has devoted decades to collecting a mass of statements and widely scattered documentary material about the evolution of GEMAs sonar and radar.

GEMA: Birthplace of German Radar and Sonar, the English edition of von Kroges first important, seminal work, discusses previously unavailable parts of the fascinating story of pioneering efforts in learning to see in the darkness. It relates the fascinating story of how German radar and sonar were developed in the years leading up to and during World War II.

The author provides insights into the difficulties encountered on the way to the first promising results in target detection and ranging without optical visibility. The book includes rare technical descriptions as well as information about industrial and scientific cooperation involving secret equipment in Germany before 1945.



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