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Zeiss-Planetarium Jena

Buildings and structures in JenaGerman museum stubsGlass engineering and scienceHistory of glassMuseums in Thuringia
Planetaria in GermanyTourist attractions in Thuringia
Zeiss Planetarium jena
Zeiss Planetarium jena

The Zeiss-Planetarium in Jena, Germany, is the oldest continuously operating planetarium in the world. Engineered by German engineer Walther Bauersfeld, the building was opened on 18 July 1926.The Zeiss-Planetarium is a projection planetarium; the planets and fixed stars are projected onto the inner surface of a white cupola. It is owned and operated by the Ernst-Abbe-Stiftung.

Excerpt from the Wikipedia article Zeiss-Planetarium Jena (License: CC BY-SA 3.0, Authors, Images).

Zeiss-Planetarium Jena
Fischergasse, Jena Zentrum (Jena-Zentrum)

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N 50.931666666667 ° E 11.586944444444 °
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Friedrich-Schiller-Universität Jena

Fischergasse
07743 Jena, Zentrum (Jena-Zentrum)
Thuringia, Germany
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Zeiss Planetarium jena
Zeiss Planetarium jena
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Botanischer Garten Jena
Botanischer Garten Jena

The Botanischer Garten Jena (4.5 hectares) is the second oldest botanical garden in Germany, maintained by the University of Jena and located at Fürstengraben 26, Jena, Thuringia, Germany. It is open daily; an admission fee is charged. The garden was first established in 1586 as a hortus medicus, six years after the establishment of the Botanical Garden in Leipzig in 1580. In 1630 it was rearranged and expanded significantly by Professor Werner Rolfinck who had previously studied at the Orto botanico di Padova (founded 1545). In 1640 a second section (1.3 hectares in area, north of the city walls) was donated, and a catalog from 1659 documents over 1300 plants in the two gardens. In 1662 the original garden was expanded, with the first heated greenhouse added in 1674, at which time the garden first began to maintain a collection of tropical plants. In 1770 the garden introduced Linnean taxonomy, and in 1776 Goethe began his association with the garden and helped organize the Jena Institute of botany; over subsequent decades he often studied botany and wrote poems in the garden. Although the garden area was only 1.3 hectares at this time, purchases recorded in 1794 include Buxus sempervirens, Juniperus sabina, Periploca graeca, Sambucus racemosa, and Thuja occidentalis. Several years later, additional purchases included amaryllis, cacti, succulent Euphorbia, Pelargonium, and Zantedeschia. The garden's first published catalog issued in 1795. Unfortunately, the garden was severely damaged in 1806 in the Napoleonic Battle of Jena-Auerstedt, and its recovery was long and slow. By 1819 the garden contained only some 50 potted plants in one greenhouse and approximately 200 outdoor plants. However, in 1820 an additional greenhouse was constructed, and the existing greenhouses reorganized to become an orangery, palm house, and cold house. The garden was thoroughly reworked between 1877 and 1879, after which it contained 2020 species from 85 families as well as a medicinal garden and 13 groups of potted plants from geographically distinct regions. As of 1966 this number had grown substantially to about 2000 families, to which were added a further 300 families (more than 3000 species) in a new alpine plant collection. Today the garden contains about 12,000 plants. Its outdoor areas include an arboretum containing about 900 species of deciduous and coniferous trees and shrubs; an alpine garden representing approximately 2,500 species; a systematic garden organized by contemporary taxonomy; a collection of medicinal and useful plants; a small hill and pond; and a collection of rhododendrons, roses, and dahlias. Its five greenhouses are as follows: cactus and succulent house; cold house for the transitional zone between tropics and subtropics; palm and tropical house; "evolution" house with ancient plant forms including cycads and tree ferns; and a tropical aquatic house which contains Victoria cruziana, mangroves, epiphytes, etc.

Jena
Jena

Jena (German pronunciation: [ˈjeːna] ) is a city in Germany and the second largest city in Thuringia. Together with the nearby cities of Erfurt and Weimar, it forms the central metropolitan area of Thuringia with approximately 500,000 inhabitants, while the city itself has a population of about 110,000. Jena is a centre of education and research; the university (now Friedrich Schiller University) was founded in 1558 and had 18,000 students in 2017 and the Ernst-Abbe-Fachhochschule Jena counts another 5,000 students. Furthermore, there are many institutes of the leading German research societies. Jena was first mentioned in 1182 and stayed a small town until the 19th century, when industry developed. For most of the 20th century, Jena was a world centre of the optical industry around companies such as Carl Zeiss, Schott and Jenoptik (since 1990). As one of only a few medium-sized cities in Germany, it has some high-rise buildings in the city centre, such as the JenTower. These also have their origin in the former Carl Zeiss factory. Between 1790 and 1850, Jena was a focal point of the German Vormärz as well as of the student liberal and unification movement and German Romanticism. Notable persons of this period in Jena were Friedrich Schiller, Alexander von Humboldt, Johann Gottlieb Fichte, Georg Wilhelm Friedrich Hegel, Novalis, and August Wilhelm Schlegel. Jena's economy is largely built upon its high-technology infrastructure and research. The precision optical instruments industry is its leading branch to date, although software engineering, other digital businesses, and biotechnology are of growing importance. Furthermore, Jena is also a service hub for its regional environs. Jena lies in a hilly landscape in the east of Thuringia, within the wide valley of the Saale river. Due to its rocky landscape, varied substrate and mixed forests, Jena is known in Germany for the wide variety of wild orchids which can be found within walking distance of the town. Local nature reserves are maintained by volunteers and NABU.

Helmholtz Institute Jena
Helmholtz Institute Jena

The Helmholtz Institute Jena was founded as an outstation of the GSI Helmholtzzentrum für Schwerionenforschung on June 25, 2009 and is located on the campus of the Friedrich Schiller University (FSU) in the city of Jena, Germany. Its purpose is to unite the research activities of the FSU in the fields of high intensity laser physics and x-ray spectroscopy with the expertise of the Deutsches Elektronen-Synchrotron (DESY), GSI Helmholtzzentrum für Schwerionenforschung and Helmholtz-Zentrum Dresden-Rossendorf in the fields of accelerator physics, laser physics and x-ray technology. The research profile of the Helmholtz Institute Jena is focused on the physics occurring at the border between conventional particle-acceleration technology and the fast-evolving field of laser-induced particle acceleration. (e.g. wakefield accelerator). It is concerned with advancing these new laser-induced accelerator concepts, as well as with the production and investigation of intense photon and particle beams, including their interaction with matter. Therefore the main activities of the institute are emphasized on the development of high intensity lasers, new concepts for laser-driven particle acceleration, x-ray spectroscopy and strong-field quantum electrodynamics, as well as on the physics of hot dense plasmas. Apart from that the Helmholtz Institute Jena aims to contribute to the further development of the research facilities at the Helmholtz center GSI, especially the future project FAIR (Facility for Antiproton and Ion Research), and DESY with the free-electron laser (FEL) photon sources FLASH and XFEL (European XFEL). In cooperation with the FSU Jena a completely diode-pumped laser system of the high energy petawatt class (HEPW) with the POLARIS laser is realized in the building of the Helmholtz Institute Jena. First measurements are done since 2008. Due to the missing last amplifier stage the pulse strength of 1 PW couldn't be reached yet. The graduate school "Research School for Advanced Photon Science" (RS-APS) was established at the Helmholtz Institute Jena in July 2012. The RS-APS supports up to 25 PhD students and provides a structured graduation program in cooperation with facilities of the FSU Jena and the Helmholtz Graduate School for Hadron and Ion Research (HGS-HIRe).