By age fifteen he and his younger brother George were replicating experiments they read about in science journals in their homemade laboratory. After being called up for military service in the Austro-Hungarian army in 1918, Dennis Gabor joined the Officers Training Corps and trained in artillery and horsemanship. He served briefly in Italy before World War I ended. Following the war he entered the Budapest Technical University in 1918 for a four-year course in mechanical engineering. His third year was interrupted, however, when he was once again called up for military service. Since he was opposed to serving in the military for what he felt was a reactionary monarchy, he left the country and went to Berlin.
Begins Professional Scientific Investigations
Gabor studied at the Technische Hochschule in Berlin, where he earned his diploma in 1924; he received his doctorate in engineering from the same institution in 1927. His doctoral dissertation involved the measure of lightning-induced fast surges in high-voltage power lines. To measure these surges, Gabor developed a cathode-ray oscilloscope with a fast response. (An oscilloscope temporarily displays in a visible wave form the variations in a fluctuating electrical quantity.) Rather than using a coil of wire in the form of a long cylinder to carry the current (a selenoid) common at the time, Gabor chose a short, iron-encased coil.
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