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Gerhard Heinrich Dieke (1901 in Rheda, Germany – August 26, 1965 in Aberdeen, Scotland) was a German/ U.S. physicist. He was a pioneer in investigating the structure of atoms and molecules by spectroscopic methods. Dieke studied at the University of Leiden under Paul Ehrenfest, and received a Ph.D. in physics at the University of California in 1926. After completing his graduate studies, he worked at the Institute of Physical and Chemical Research in Tokyo and in 1929 he was Dirk Coster's assistant at the University of Groningen in the Netherlands. Dieke joined the Department of Physics at Johns Hopkins University in 1930 as an associate professor, and he later served as chairman of the department, 1950-1965. Dieke was a man of wide interests, and was an expert on the taxonomy of lady beetles (
Coccinellidae Coccinellidae () is a widespread family of small beetles ranging in size from . They are commonly known as ladybugs in North America and ladybirds in Great Britain. Some entomologists prefer the names ladybird beetles or lady beetles as they ...
). In 1947 he authored a review of the genus ''
Epilachna ''Epilachna'' is a genus of beetle in the family Coccinellidae, including several pest species, such as the Mexican bean beetle (''Epilachna varivestis''). Species These species belong to the genus ''Epilachna'': * ''Epilachna angusta'' Li, 19 ...
'' based on the collections of the
Smithsonian Museum The Smithsonian Institution ( ), or simply the Smithsonian, is a group of museums and education and research centers, the largest such complex in the world, created by the U.S. government "for the increase and diffusion of knowledge". Founded ...
and others. Dieke was elected a correspondent of the
Royal Netherlands Academy of Arts and Sciences The Royal Netherlands Academy of Arts and Sciences ( nl, Koninklijke Nederlandse Akademie van Wetenschappen, abbreviated: KNAW) is an organization dedicated to the advancement of science and literature in the Netherlands. The academy is housed ...
in 1952.


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Biographical note
at the Johns Hopkins University 1901 births 1965 deaths Leiden University alumni University of California, Berkeley alumni Academic staff of the University of Groningen Johns Hopkins University faculty 20th-century American physicists 20th-century German physicists People from Rheda-Wiedenbrück Members of the Royal Netherlands Academy of Arts and Sciences German emigrants to the United States {{Germany-physicist-stub