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Paul Ten Bruggencate
Paul ten Bruggencate (24 February 1901 – 14 September 1961) was a German astronomer and astrophysicist. Youth and education Ten Bruggencate was born in Arosa, Switzerland, and went to several schools in Switzerland, in the Netherlands and in Germany. He further studied at the University of Munich and started his PhD work with Hugo von Seeliger. However, due to health problems, Seeliger had to hand over the supervision of his PhD students to Hans Kienle. Ten Bruggencate graduated from the University of Munich and in 1924, together with Hans Kienle, moved to the Göttingen University Observatory. Ten Bruggencate stayed as an assistant at the Göttingen University until 1926, when he traveled to Java. He worked there with the Dutch astronomer Joan Voûte at the Bosscha Observatory near Lembang and started a survey of Cepheid variable stars. After two years at the Bosscha Observatory, he visited the Mt. Wilson Observatory and the Harvard College Observatory In the United States ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arosa
Arosa is a List of towns in Switzerland, town and a municipalities of Switzerland, municipality in the Plessur Region in the canton of Graubünden in Switzerland. It is both a summer and a winter tourist resort. On 1 January 2013, the former municipalities of Calfreisen, Castiel, Switzerland, Castiel, Langwies, Lüen, Molinis, Peist and St. Peter-Pagig merged into the municipality of Arosa.Nomenklaturen – Amtliches Gemeindeverzeichnis der Schweiz accessed 9 February 2013 At the end of 2013 the Arosa ski resort was linked with Lenzerheide by cable-car, creating the new ski resort of Arosa Lenzerheide; since that change, transport passes have been valid in both resorts. The official language of Arosa is (the Swiss variety of Standard) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Greifswald
The University of Greifswald (; ), formerly known as Ernst-Moritz-Arndt University of Greifswald, is a public research university located in Greifswald, Germany, in the state of Mecklenburg-Western Pomerania. Founded in 1456, it is one of the oldest universities in Europe, with generations of notable alumni and staff having studied or worked in Greifswald. As the fourth oldest university in present Germany, it was temporarily also the oldest university of the Kingdoms of Sweden (1648–1815) and Prussia (1815–1945), respectively. Approximately two-thirds of the 10,179 students are from outside the state, including international students from 90 countries all over the world. History 1456–1600: Founding The University of Greifswald was founded on 17 October 1456 with the approval of the Holy Roman Empire and the Pope. This was possible due to the great commitment of Greifswald's lord mayor, Heinrich Rubenow, who was also to become the university's first rector, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teide Observatory
Teide Observatory (), IAU code 954, is an astronomical observatory on Mount Teide at , located on Tenerife, Spain. It has been operated by the Instituto de Astrofísica de Canarias since its inauguration in 1964. It became one of the first major international observatories, attracting telescopes from different countries around the world because of the good astronomical seeing conditions. Later, the emphasis for optical telescopes shifted more towards Roque de los Muchachos Observatory on La Palma. Telescopes Solar telescopes *Solar Vacuum Tower Telescope (VTT): 70 cm diameter. Operated by the Kiepenheuer Institute of Solar Physics, Freiburg (Germany). Installed in 1989. *Télescope Heliographique pour l'Etude du Magnétisme et des Instabilités Solaries (THEMIS) Solar Telescope: 90 cm diameter, built 1996, operated by France and Italy. * GREGOR Solar Telescope: 1.5 m, operated by a German consortium. In operation since May 2012. *A node of the Birmingham Sol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Academy Of Sciences Göttingen
An academy (Attic Greek: Ἀκαδήμεια; Koine Greek Ἀκαδημία) is an institution of tertiary education. The name traces back to Plato's school of philosophy, founded approximately 386 BC at Akademia, a sanctuary of Athena, the goddess of wisdom and Skills, skill, north of Ancient Athens, Athens, Greece. The Royal Spanish Academy defines academy as scientific, literary or artistic society established with public authority and as a teaching establishment, public or private, of a professional, artistic, technical or simply practical nature. Etymology The word comes from the ''Academy'' in ancient Greece, which derives from the Athenian hero, ''Akademos''. Outside the city walls of Athens, the Gymnasium (ancient Greece), gymnasium was made famous by Plato as a center of learning. The sacred space, dedicated to the goddess of wisdom, Athena, had formerly been an olive Grove (nature), grove, hence the expression "the groves of Academe". In these gardens, the philos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Locarno Observatory
Locarno (; ; Ticinese: ; formerly in ) is a southern Swiss town and municipality in the district Locarno (of which it is the capital), located on the northern shore of Lake Maggiore at its northeastern tip in the canton of Ticino at the southern foot of the Swiss Alps. It has a population of about 16,000 (proper), and about 56,000 for the agglomeration of the same name including Ascona besides other municipalities. The town of Locarno is located on the northeastern part of the river Maggia's delta; across the river lies the town of Ascona on the southwestern part of the delta. Locarno is the 74th largest city in Switzerland by population and the third largest in the Ticino canton, after Lugano and Bellinzona. The official language of Locarno is Italian. The town is known for hosting the Locarno International Film Festival which takes place every year in August and involves open-air screenings at the main square, the Piazza Grande. It is also known for the Locarno Treaties, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verlag Harri Deutsch
The (VHD, HD) with headquarters in Frankfurt am Main, Germany, as well as in Zürich and Thun, Switzerland, was a German publishing house founded in 1961 and closed in 2013. Overview The ' with headquarters in Frankfurt am Main, Germany, was a German publishing house founded by Harri Deutsch in 1961 as a spin-off of the scientific bookstore Fachbuchhandlung Harri Deutsch (FHD), which had existed for about a decade earlier. Both were situated near Goethe-Universität Frankfurt am Main. Between 1963 and about 1979 the publisher also had an office in Zürich. Around 1974 another branch was opened in Thun. The company's activities focussed mostly on textbooks and encyclopedic works in the areas of mathematics, physics, chemistry and other sciences and technologies, in the first three decades in particular titles licensed from publishers of the former Eastern Bloc including the East-German publishers Edition Leipzig, , Akademie Verlag, VEB Bibliographisches Institut, VE ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fraunhofer Society
The Fraunhofer Society () is a German publicly-owned research organization with 76institutes spread throughout Germany, each focusing on different fields of applied science (as opposed to the Max Planck Society, which works primarily on Basic research, basic science). With some 30,800 employees, mainly scientists and engineers, and with an annual research budget of about €3.0billion, it is the biggest organization for applied research and development services in Europe. It is named after Joseph von Fraunhofer who, as a scientist, an engineer, and an entrepreneur, is said to have superbly exemplified the goals of the society. Some basic funding for the Fraunhofer Society is provided by the state (the German public, through the federal government together with the states or ''States of Germany, Länder'', "owns" the Fraunhofer Society), but more than 70% of the funding is earned through contract work, either for government-sponsored projects or from industry. Since the 1990s th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kiepenheuer Institute For Solar Physics
The Institute for Solar Physics (aka: KIS; ), from 2018 to 2023, the institute's name was Leibniz Institute for Solar Physics, formerly known as Kiepenheuer Institute for Solar Physics and thus abbreviated KIS) is a non-university research institute located in Freiburg, Germany. The institute conducts application-oriented basic research in the fields of astronomy, astrophysics and solar physics. The KIS lost its membership to the Leibniz Association at the end of 2023 due to a negative evaluation of the institute while both the scientific and instrumentation directors left. History The institute was founded in 1943 as the 'Fraunhofer Institute' by Karl-Otto Kiepenheuer. Kiepenheuer was director of the institute from 1943 until his death in 1975. The institute was renamed as the 'Kiepenheuer Institute for Solar Physics' to honour the founder of the institute and to enable the Fraunhofer Society to call their own institutes (the first of which was founded in 1954), 'Fraunhofer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karl-Otto Kiepenheuer
Karl-Otto Kiepenheuer (10 November 1910 – 23 May 1975) was a German astronomer and astrophysicist. His research focused on the Sun, and for that purpose he initiated construction of several solar telescopes and founded the Kiepenheuer Institute for Solar Physics. Life and work Kiepenheuer was born in 1910 in Weimar, Germany, as a son of the publisher Gustav Kiepenheuer. After the divorce of his parents in 1923 he stayed with his mother. In 1929, he began his studies of physics, astronomy and mathematics at the Technische Hochschule in Charlottenburg (now Technische Universität Berlin) and the University of Berlin. He spent one semester in Paris where he visited the Meudon observatory. He later worked at the Göttingen Observatory where he tried to develop a method to measure the UV radiation of the Sun. After an unsuccessful attempt at Jungfraujoch, he realized that the elevation of 3,454 meters was insufficient for this measurement. The balloon-borne instruments of Erich Reg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Short Wave
Shortwave radio is radio transmission using radio frequencies in the shortwave bands (SW). There is no official definition of the band range, but it always includes all of the high frequency band (HF), which extends from 3 to 30 MHz (approximately 100 to 10 metres in wavelength). It lies between the medium frequency band (MF) and the bottom of the VHF band. Radio waves in the shortwave band can be reflected or refracted from a layer of electrically charged atoms in the atmosphere called the ionosphere. Therefore, short waves directed at an angle into the sky can be reflected back to Earth at great distances, beyond the horizon. This is called skywave or "skip" propagation. Thus shortwave radio can be used for communication over very long distances, in contrast to radio waves of higher frequency, which travel in straight lines (line-of-sight propagation) and are generally limited by the visual horizon, about 64 km (40 miles). Shortwave broadcasts of radio pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Weather
Space weather is a branch of space physics and aeronomy, or heliophysics, concerned with the varying conditions within the Solar System and its heliosphere. This includes the effects of the solar wind, especially on the Earth's magnetosphere, ionosphere, thermosphere, and exosphere. Though physically distinct, space weather is analogous to the terrestrial weather of Earth's atmosphere of Earth, atmosphere (troposphere and stratosphere). The term "space weather" was first used in the 1950s and popularized in the 1990s. Later, it prompted research into "space climate", the large-scale and long-term patterns of space weather. History For many centuries, the effects of space weather were noticed, but not understood. Displays of aurora (astronomy), auroral light have long been observed at high latitudes. Beginnings In 1724, George Graham (clockmaker), George Graham reported that the needle of a magnetic compass was regularly deflected from magnetic north over the course of each day. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Einstein Tower
The Einstein Tower (German: ''Einsteinturm'') is an astrophysical observatory in the Albert Einstein Science Park in Potsdam, Germany. The Tower was built by architect Erich Mendelsohn in 1924. It was built on the summit of the Potsdam '' Telegraphenberg'' to house a solar telescope designed by the astronomer Erwin Finlay-Freundlich. The telescope supports experiments and observations to validate (or disprove) Albert Einstein's relativity theory. Although Einstein never worked there, he supported the construction and operation of the telescope. Einstein Tower is a working solar observatory today as part of the Leibniz Institute for Astrophysics Potsdam. History The building was first conceived around 1917, built from 1919 to 1921 after a fund-raising drive, and became operational in 1924. Light from the telescope is directed down through the shaft to the basement where the instruments and laboratory are located. There were more than half a dozen telescopes in the la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
