Date in year · 1914 · The 1910s
April 24, 1914
On April 24, 1914, the Franck–Hertz experiment, a pillar of quantum mechanics, is presented to the German Physical Society.
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1910s
Featured · April 24, 1914
The Franck–Hertz experiment, a pillar of quantum mechanics, is presented to the German Physical Society.
The Franck–Hertz experiment was the first electrical measurement to clearly show the quantum nature of atoms. It was presented on 24 April 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 energetic electrons that flew through a thin vapour of mercury atoms.
Around 1914
The year in brief
1914 (MCMXIV) was a common year starting on Thursday of the Gregorian calendar and a common year starting on Wednesday of the Julian calendar, the 1914th year of the Common Era (CE) and Anno Domini (AD) designations, the 914th year of the 2nd millennium, the 14th year of the 20th…
What happened
On April 24, 1914
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1914 The Franck–Hertz experiment, a pillar of quantum mechanics, is presented to the German Physical Society. 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 24 April 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 energetic electrons that flew through a thin vapour of mercury atoms.
Elsewhere that year
Other moments from 1914
- April 20 Nineteen men, women, and children participating in a strike are killed in the Ludlow Massacre during the Colorado Coalfield War.
- April 21 Ypiranga incident: A German arms shipment to Mexico is intercepted by the U.S. Navy near Veracruz.
- August 1 World War I: The German Empire declares war on the Russian Empire.
- August 1 World War I: The Swiss Army mobilizes because of World War I.
- August 12 World War I: France, the United Kingdom and the British Empire declare war on Austria-Hungary.
- August 12 World War I: The Battle of Halen a.k.a. Battle of the Silver Helmets a clash between large Belgian and German cavalry formations at Halen, Belgium.
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