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Georg Thomas Sabler
Georg Thomas Sabler (Russian: ''Его́р Его́рович Са́блер'' or ''Георг Заблер'', Lithuanian: ''Georgas Tomas Sableris''; – 7 December 1865) was an astronomer and geodesist of Baltic German origin active in territories of modern-day Estonia, Lithuania, Ukraine, and Russia (then all part of the Russian Empire). A student of Friedrich Georg Wilhelm von Struve, Sabler studied theology and mathematics at the University of Tartu. Fascinated by Struve's lectures of astronomy, Sabler participated in an expedition that measured the difference of sea levels in the Black Sea and Caspian Sea. Sabler then worked as an astronomer at Tartu Observatory and Pulkovo Observatory, and later became the director of the Vilnius University Astronomical Observatory, which received its own photoheliograph due to Sabler's efforts. The telescope was the second one produced in the world. Sabler and his assistant Matvey Gusev pioneered the photography and research of sunspots ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haljala
Haljala () is a Populated places in Estonia, small borough () in Lääne-Viru County, in northern Estonia. It is located about 10 km northwest of the town of Rakvere, by the Tallinn–Narva (Tallinn–Saint Petersburg) road (part of European route E20, E20). Haljala is the administrative centre of Haljala Parish. As of the 2011 Estonia Census, 2011 Census, the settlement's population was 1,084. Haljala was first mentioned in 1241. Name Haljala was attested in historical sources as ''Halela'' in 1241, ''Halgel'' in 1402, ''Halligell'' in 1445, and ''Haliel'' in 1447, among other spellings. The Finnish linguist analyzed the name as not ending in -''jalg'' 'leg, foot' (genitive -''jala''), but with the suffix -''la''. According to the linguist Valdek Pall, the suffix -''la'' in place names is often preceded by a personal name, and Airi Kartano has compared personal names containing ''Hal'' (such as ''Hali(kko)'', and ''Halli'') with the word ''hall'' 'gray(-headed), gray(-bear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Sea
The Black Sea is a marginal sea, marginal Mediterranean sea (oceanography), mediterranean sea lying between Europe and Asia, east of the Balkans, south of the East European Plain, west of the Caucasus, and north of Anatolia. It is bounded by Bulgaria, Georgia (country), Georgia, Romania, Russia, Turkey, and Ukraine. The Black Sea is Inflow (hydrology), supplied by major rivers, principally the Danube, Dnieper and Dniester. Consequently, while six countries have a coastline on the sea, its drainage basin includes parts of 24 countries in Europe. The Black Sea, not including the Sea of Azov, covers , has a maximum depth of , and a volume of . Most of its coasts ascend rapidly. These rises are the Pontic Mountains to the south, bar the southwest-facing peninsulas, the Caucasus Mountains to the east, and the Crimean Mountains to the mid-north. In the west, the coast is generally small floodplains below foothills such as the Strandzha; Cape Emine, a dwindling of the east end ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imperial Russian Geographical Society
The Russian Geographical Society (), or RGO, is a learned society based in Saint Petersburg, Russia. It promotes geography, exploration and nature protection with research programs in fields including oceanography, ethnography, ecology and statistics. History Imperial Geographical Society The society was founded in Saint Petersburg, Russia on 6 (18) August 1845. Prior to the Russian Revolution of 1917, it was known as the Imperial Russian Geographical Society. The order to establish the society came directly from Emperor Nicholas I. The motive for the establishment was to encourage geographical research on domestic topics, which has later been described as a Russian nationalist political goal. The filial societies were established at the Caucasus (1850), Irkutsk (1851), Vilnius (1867), Orenburg (1868), Kiev (1873), Omsk (1877), and other cities. The Society organized and funded the expeditions of Richard Maack, Pyotr Kropotkin, Semyonov-Tyan-Shansky, Nikolai Przhevalsky, N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Khotyn Raion
Khotyn Raion () was an administrative raion (district) in the southern part of Chernivtsi Oblast in western Ukraine, on the Romanian border. It was part of the historical region of Bessarabia. The administrative center was the city of Khotyn. The region had an area of . The raion was abolished on 18 July 2020 as part of the administrative reform of Ukraine, which reduced the number of raions of Chernivtsi Oblast to three. The area of Khotyn Raion was merged into Dnistrovskyi Raion. According to the 2001 census, the majority of the Khotyn district's population spoke Ukrainian (91.57%), with Romanian (6.96%) and Russian (1.27%) speakers in the minority. The last estimate of the raion population was At the time of disestablishment, the raion consisted of eight hromada In Ukraine, a hromada () is the main type of municipality and the third level Administrative divisions of Ukraine, local self-government in Ukraine. The current hromadas were established by the Cabinet of ministe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Friedrich Tenner
Carl may refer to: *Carl, Georgia, city in USA *Carl, West Virginia, an unincorporated community *Carl (name), includes info about the name, variations of the name, and a list of people with the name *Carl², a TV series * "Carl", an episode of television series ''Aqua Teen Hunger Force'' * An informal nickname for a student or alum of Carleton College CARL may refer to: *Canadian Association of Research Libraries *Colorado Alliance of Research Libraries See also *Carle (other) *Charles *Carle, a surname *Karl (other) *Karle (other) Karle may refer to: Places * Karle (Svitavy District), a municipality and village in the Czech Republic * Karli, India, a town in Maharashtra, India ** Karla Caves, a complex of Buddhist cave shrines * Karle, Belgaum, a settlement in Belgaum ... {{disambig ja:カール zh:卡尔 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meridian Circle
The meridian circle is an instrument for timing of the passage of stars across the local meridian, an event known as a culmination, while at the same time measuring their angular distance from the nadir. These are special purpose telescopes mounted so as to allow pointing only in the meridian, the great circle through the north point of the horizon, the north celestial pole, the zenith, the south point of the horizon, the south celestial pole, and the nadir. Meridian telescopes rely on the rotation of the sky to bring objects into their field of view and are mounted on a fixed, horizontal, east–west axis. The similar transit instrument, transit circle, or transit telescope is likewise mounted on a horizontal axis, but the axis need not be fixed in the east–west direction. For instance, a surveyor's theodolite can function as a transit instrument if its telescope is capable of a full revolution about the horizontal axis. Meridian circles are often called by these names, alth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doctoral Degree
A doctorate (from Latin ''doctor'', meaning "teacher") or doctoral degree is a postgraduate academic degree awarded by universities and some other educational institutions, derived from the ancient formalism '' licentia docendi'' ("licence to teach"). In most countries, a research degree qualifies the holder to teach at university level in the degree's field or work in a specific profession. There are a number of doctoral degrees; the most common is the Doctor of Philosophy (PhD), awarded in many different fields, ranging from the humanities to scientific disciplines. Many universities also award honorary doctorates to individuals deemed worthy of special recognition, either for scholarly work or other contributions to the university or society. History Middle Ages The term ''doctor'' derives from Latin, meaning "teacher" or "instructor". The doctorate (Latin: ''doctoratus'') appeared in medieval Europe as a license to teach Latin (''licentia docendi'') at a university. Its root ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Binary Stars
A binary star or binary star system is a system of two stars that are gravitationally bound to and in orbit around each other. Binary stars in the night sky that are seen as a single object to the naked eye are often resolved as separate stars using a telescope, in which case they are called ''visual binaries''. Many visual binaries have long orbital periods of several centuries or millennia and therefore have orbits which are uncertain or poorly known. They may also be detected by indirect techniques, such as spectroscopy (''spectroscopic binaries'') or astrometry (''astrometric binaries''). If a binary star happens to orbit in a plane along our line of sight, its components will eclipse and transit each other; these pairs are called ''eclipsing binaries'', or, together with other binaries that change brightness as they orbit, ''photometric binaries''. If components in binary star systems are close enough, they can gravitationally distort each other's outer stellar atmospheres. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lutheran
Lutheranism is a major branch of Protestantism that emerged under the work of Martin Luther, the 16th-century German friar and Protestant Reformers, reformer whose efforts to reform the theology and practices of the Catholic Church launched the Reformation in 1517. The Lutheran Churches adhere to the Bible and the Ecumenical Creeds, with Lutheran doctrine being explicated in the Book of Concord. Lutherans hold themselves to be in continuity with the apostolic church and affirm the writings of the Church Fathers and the first four ecumenical councils. The schism between Roman Catholicism and Lutheranism, which was formalized in the Diet of Worms, Edict of Worms of 1521, centered around two points: the proper source of s:Augsburg Confession#Article XXVIII: Of Ecclesiastical Power., authority in the church, often called the formal principle of the Reformation, and the doctrine of s:Augsburg Confession#Article IV: Of Justification., justification, the material principle of Luther ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lääne-Viru County
Lääne-Viru County ( or ''Lääne-Virumaa'') is one of 15 counties of Estonia. It is in northern Estonia, on the south coast of the Gulf of Finland. In Estonian, ''lääne'' means western and ''ida'' means east or eastern. Lääne-Viru borders Ida-Viru County to the east, Jõgeva County to the south, and Järva County, Järva and Harju County, Harju counties to the west. In January 2013, Lääne-Viru County had a population of 58,806: 4.5% of the population in Estonia. History In prehistoric times, Lääne-Virumaa was settled by Estonians of the Vironian tribe. County government Until 2017 the County Governments of Estonia, County Government (), seated in Rakvere, was led by a County Governors of Estonia, governor (), who was appointed by the Government of Estonia. Since 2014, the governor position was held by Marko Torm. Municipalities The county is subdivided into Municipalities of Estonia, municipalities. There is one urban municipality ( – towns) and seven rural muni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bessarabia
Bessarabia () is a historical region in Eastern Europe, bounded by the Dniester river on the east and the Prut river on the west. About two thirds of Bessarabia lies within modern-day Moldova, with the Budjak region covering the southern coastal region and part of the Ukrainian Chernivtsi Oblast covering a small area in the north. In the late 14th century, the newly established Principality of Moldavia encompassed what later became known as Bessarabia. Afterward, this territory was directly or indirectly, partly or wholly controlled by: the Ottoman Empire (as suzerain of Moldavia, with direct rule only in Budjak and Khotyn), the Russian Empire, Romania, the USSR. In the aftermath of the Russo-Turkish War (1806–1812), and the ensuing Treaty of Bucharest (1812), Peace of Bucharest, the eastern parts of the Moldavia, Principality of Moldavia, an Ottoman Empire, Ottoman vassal state, vassal, along with some areas formerly under direct Ottoman rule, were ceded to Imperial Russ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Struve Geodetic Arc
The Struve Geodetic Arc is a chain of survey triangulations stretching from Hammerfest in Norway to the Black Sea, through ten countries and over , which yielded the first accurate measurement of a meridian arc. The chain was established and used by the German-born Russian scientist Friedrich Georg Wilhelm von Struve in the years 1816 to 1855 to establish the exact size and shape of the earth. At that time, the chain passed merely through three countries: Norway, Sweden and the Russian Empire. The Arc's first point is located in Tartu Observatory in Estonia, where Struve conducted much of his research. Measurement of the triangulation chain comprises 258 main triangles and 265 geodetic vertices. The northernmost point is located near Hammerfest in Norway and the southernmost point near the Black Sea in Ukraine. In 2005, the chain was inscribed on the World Heritage List, because of its importance in geodesy and its testimony to international scientific cooperation. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
