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GEMA - Birthplace of German Radar and Sonar (Hardcover)
Loot Price: R5,310
Discovery Miles 53 100
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GEMA - Birthplace of German Radar and Sonar (Hardcover)
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In Germany, the development of the first technologies of sonar and
radar were interrelated. Following Christian Hulsmeyer's forgotten
invention of the "Telemobiloskop" in 1904, two Berlin engineers,
Paul Gunther Erbsloh 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 fur 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 GEMA's sonar and radar. GEMA: Birthplace of German
Radar and Sonar, the English edition of von Kroge's 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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