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- Walther_Bauersfeld abstract "Walther Bauersfeld (23 January 1879 in Berlin – 28 October 1959 in Heidenheim an der Brenz) was a German engineer, employed by the Zeiss Corporation, who, on a suggestion by the German astronomer Max Wolf, started work on the first projection planetarium in 1912. This work was stopped by military needs during World War I, but resumed after the war. Bauersfeld completed the first planetarium, known as the Zeiss I model in 1923, and it was initially placed on the roof of a Zeiss building in the corporate headquarters town of Jena. This model projected 4,900 stars, and was limited to showing the sky only from Jena's latitude. Subsequently, Bauersfeld developed the Model 2 with 8,956 stars, and full latitude capability. Over a dozen were installed before World War II again suspended planetarium work. These inter-war planetariums were built in Berlin and Düsseldorf in Germany, as well as Rome, Paris, Chicago, Los Angeles and New York. The Zeiss I planetarium in Jena is also considered the first geodesic dome derived from the icosahedron, more than 20 years before Buckminster Fuller reinvented and popularized this design.Bauersfeld was awarded the Franklin Institute's Elliott Cresson Medal in 1933.Post-war, the Zeiss firm, like Germany, divided in two. Bauersfeld remained with the core firm in Jena, East Germany, where after 1953 he developed the ZKP-1 (Zeisskleinplanetarium=Zeiss Small Planetarium #1). This was intended for small dome planetariums, and while it had latitude change capabilities, the operator had to turn a hand crank to accomplish this. The ZKP-2 added a motor for latitude change. Bauersfeld retired shortly after the ZKP-2 was introduced.A monthly newsletter named in Walther Bauersfeld's honor, "Bauersfeld's Folly", was circulated to mostly North American planetariums 1973 to 1983. Asteroid 1553 Bauersfelda was named in his honor.".
- Walther_Bauersfeld birthDate "1879-01-23".
- Walther_Bauersfeld birthYear "1879".
- Walther_Bauersfeld deathDate "1959-10-28".
- Walther_Bauersfeld deathYear "1959".
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- Walther_Bauersfeld wikiPageExternalLink Städtisches_Planetarium.
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- Walther_Bauersfeld dateOfBirth "1879-01-23".
- Walther_Bauersfeld dateOfDeath "1959-10-28".
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- Walther_Bauersfeld name "Bauersfeld, Walther".
- Walther_Bauersfeld shortDescription "German engineer".
- Walther_Bauersfeld description "German engineer".
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- Walther_Bauersfeld subject Category:Werner_von_Siemens_Ring_laureates.
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- Walther_Bauersfeld comment "Walther Bauersfeld (23 January 1879 in Berlin – 28 October 1959 in Heidenheim an der Brenz) was a German engineer, employed by the Zeiss Corporation, who, on a suggestion by the German astronomer Max Wolf, started work on the first projection planetarium in 1912. This work was stopped by military needs during World War I, but resumed after the war.".
- Walther_Bauersfeld label "Walther Bauersfeld".
- Walther_Bauersfeld label "Walther Bauersfeld".
- Walther_Bauersfeld label "Walther Bauersfeld".
- Walther_Bauersfeld label "Бауэрсфельд, Вальтер".
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- Walther_Bauersfeld name "Bauersfeld, Walther".
- Walther_Bauersfeld name "Walther Bauersfeld".
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