Gemas

Gemas
Author: Antonio Ochoa-Alcántara
Publisher:
Total Pages: 128
Release: 1927
Genre:
ISBN:

GEMA

GEMA
Author: Harry von Kroge
Publisher: CRC Press
Total Pages: 206
Release: 2000-01-01
Genre: Science
ISBN: 1420034308

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 radi

Report

Report
Author: Institute for Medical Research (Malaysia). Malaria Bureau
Publisher:
Total Pages: 148
Release: 1919
Genre: Malaria
ISBN: