events
The Franck–Hertz experiment, a pillar of quantum mechanics, is presented to the German Physical Society.
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Franck–Hertz experiment
1914 confirmation of the atom's quantum nature
The Franck–Hertz experiment was the first electrical measurement to clearly show the quantum nature of atoms. It was presented on April 24, 1914, to the German Physical Society in a paper by James Franck and Gustav Hertz. Franck and Hertz had designed a vacuum tube for studying…Source: Wikipedia (CC BY-SA)
Introduction to quantum mechanics
Non-mathematical introduction
Quantum mechanics is the study of matter and matter's interactions with energy on the scale of atomic and subatomic particles. By contrast, classical physics explains matter and energy only on a scale familiar to human experience, including the behavior of astronomical bodies…Source: Wikipedia (CC BY-SA)
German Physical Society
Physics organisation in Germany
The German Physical Society is the oldest organisation of physicists. DPG's 2025 worldwide membership is cited as 50,668, with a peak of 63,012 in 2014. It holds an annual conference and multiple spring conferences, which are held at various locations and along topical subjects…Source: Wikipedia (CC BY-SA)