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Vor 3 Tagen · By 1914, experiments by physicists Ernest Rutherford, Henry Moseley, James Franck and Gustav Hertz had largely established the structure of an atom as a dense nucleus of positive charge surrounded by lower-mass electrons.
Vor 4 Tagen · Eine schwierige Frage gab es für Rebecca Klein in der aktuellen Ausgabe von „Wer wird Millionär?“ zu lösen: Als neuer Sportvorstand beim FC Bayern München vorgestellt wurde Ende Februar ...
Vor 2 Tagen · James Franck and Gustav Hertz conducted an experiment in 1914, which demonstrated the existence of excited states in mercury atoms. It confirms the prediction of quantum theory that electrons occupy only discrete, quantized energy states. This experiment supports Bohr model of atom.
Vor 4 Tagen · Pierre Agostini (born July 23, 1941, Tunis, Tunisia) is a French physicist who was awarded the 2023 Nobel Prize in Physics for his experiments with attosecond pulses of light. He shared the prize with French physicist Anne L’Huillier and Hungarian physicist Ferenc Krausz. An attosecond is 10 −18 second, or a billionth of a billionth of a second.
Vor einem Tag · Nikola Tesla ( / ˈtɛslə /; [2] Serbian Cyrillic: Никола Тесла, [nǐkola têsla]; 10 July [ O.S. 28 June] 1856 – 7 January 1943) was a Serbian-American [3] [4] inventor, electrical engineer, mechanical engineer, and futurist. He is known for his contributions to the design of the modern alternating current (AC) electricity supply ...
Vor 5 Tagen · Mains electricity by country. Mains electricity by country includes a list of countries and territories, with the plugs, voltages and frequencies they commonly use for providing electrical power to low voltage appliances, equipment, and lighting typically found in homes and offices. (For industrial machinery, see industrial and multiphase power ...
Vor 2 Tagen · Wikipedia [ ˌvɪkiˈpeːdia] ( anhören ⓘ /?) ist ein gemeinnütziges Projekt zur Erstellung einer freien Enzyklopädie auf Basis des sogenannten Wiki-Prinzips . Die Inhalte der Wikipedia werden von freiwilligen Autoren erstellt und gepflegt, dafür erhalten sie keine finanzielle Entschädigung.
