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GEMA : Birthplace of German Radar and Sonar by Harry von Kroge; Transl. from the Germ. a. ed. by Louis Brown is a nonfiction available to read on EtoBox.

What is GEMA : Birthplace of German Radar and Sonar about?

In Germany, the development of the first technologies of sonar and radar were interrelated. Following Christian H?lsmeyer's forgotten invention of the "Telemobiloskop" in 1904, two Berlin engineers, Paul G?nther Erbsl?h 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 f?r 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 prom

Who reads GEMA : Birthplace of German Radar and Sonar?

Author

Harry von Kroge; Transl. from the Germ. a. ed. by Louis Brown

Publisher

IOP Publishing Ltd

Published

2000

Language

EN

ISBN

9780429146541

Category

nonfiction

Subjects

Engineering, History, Science

Updated

2026-03-24