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(1887–1975), German physicist and Nobel laureate, born in Hamburg, and educated at the universities of Göttingen, Munich, and Berlin. In conjunction with the American physicist James Franck, Hertz studied the effect of the impact of electrons on atoms. As a result of these experiments, which were the first demonstration of the quantum theory of the German physicist Max Planck, Hertz and Franck were awarded the 1925 Nobel Prize in physics. Hertz served as professor of experimental physics at the University of Halle from 1925 to 1927 and at the Berlin Technische Hochschule from 1928 to 1935, when he became director of the Siemens Research Laboratory in Berlin. In 1945 he went to the USSR to continue his work in atomic research; he was awarded the Stalin Prize in 1951.
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ENCYCLOPEDIA:
PHYSICS,
PHYSICS,. branch of natural science dealing with the fundamental constituents of the universe, the forces they exert on one another, and the results produced by these forces. Sometimes in modern physics a more sophisticated approach is taken that
Gustav: World's Biggest Gun
Video
2:00 min
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This Day in History: 03/31/1889 - Eiffel Tower Opens
Video
1:00 min
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Fall of Monte Cassino
Video
2:02 min
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Soviets Invade During Prague Spring
Video
0:49 min
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Franklin D. Roosevelt on the liberation of Rome
Video
1:55 min
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Gustav: World's Biggest Gun
2:00 min
In a Mail Call video, R. Lee Ermey answers a question from Tom of Kansas, who wants to know what is the biggest gun in the world. Ermey says to answer this question you first have to define what you mean by big.
In a Mail Call video, R. Lee Ermey answers a question from Tom of Kansas, who wants to know what is the biggest gun in the world. Ermey says to answer this question you first have to define what you mean by big.
This Day in History: 03/31/1889 - Eiffel Tower Opens
1:00 min
On March 31, 1889, the Eiffel Tower is dedicated in Paris in a ceremony presided over by Gustave Eiffel, the tower's designer, and attended by French Prime Minister Pierre Tirard, a handful of other dignitaries, and 200 construction workers.
On March 31, 1889, the Eiffel Tower is dedicated in Paris in a ceremony presided over by Gustave Eiffel, the tower's designer, and attended by French Prime Minister Pierre Tirard, a handful of other dignitaries, and 200 construction workers.
Fall of Monte Cassino
2:02 min
On May 18th, a Polish corps of the British 8th Army captured Monte Cassino, site of an ancient, hill-top monastery that the Germans had transformed into a fortress. With the fall of Monte Cassino, the Gustav Line began to collapse.
On May 18th, a Polish corps of the British 8th Army captured Monte Cassino, site of an ancient, hill-top monastery that the Germans had transformed into a fortress. With the fall of Monte Cassino, the Gustav Line began to collapse.
Soviets Invade During Prague Spring
0:49 min
Representative Hale Boggs of the Democratic Party received news that the Soviets had invaded Czechoslovakia on August 22, 1968. Upon hearing the news, Secretary of State Dean Ruck left the hearing to find out what was going on.
Representative Hale Boggs of the Democratic Party received news that the Soviets had invaded Czechoslovakia on August 22, 1968. Upon hearing the news, Secretary of State Dean Ruck left the hearing to find out what was going on.
Franklin D. Roosevelt on the liberation of Rome
1:55 min
In May 1944, the Gustav Line, a system of German fortifications that straddled the peninsula about 75 miles south of Rome, fell to the Allies.
In May 1944, the Gustav Line, a system of German fortifications that straddled the peninsula about 75 miles south of Rome, fell to the Allies.
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