… Martin Jähnert is a historian of science focused on conceptual developments in 19th- and 20th-century physics. As a fellow at the Berlin Center for the History of Knowledge he is currently working on the history of photometry as practiced at lighthouses in the 19th century. He was part of the project History and Foundation of Quantum Physics at the Max Planck Institute for the History of Science where he worked on the conceptual development of the old quantum theory, in particular of the correspondence principle and the interpretational debate on quantum mechanics in the 1920s.
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