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Peter Carl Ludwig Schwarz
Peter Carl Ludwig Schwarz (Julian calendar, Julian, Old Style and New Style dates, O.S.: 23 May 1822, Danzig-Gdańsk – 17 September 1894, St. George's?, buried in Tartu)(Gregorian calendar, Gregorian, Old Style and New Style dates, N.S.: 4 June 1822 – 29 September 1894),''Observatory'' (1894), p. 376. referred to mostly as Ludwig Schwarz, was a Baltic Germans, Baltic German astronomerAmur catalog entry of 2 maps. of Russian Empire, Imperial Russia, explorer, and professor of astronomy at the University of Dorpat honored with the Russian Geographical Society#Constantin Medal, Konstantin MedalThe Konstantin Medal is named after Grand Duke Konstantin Nikolayevich of Russia, the first chairman of the Russian Geographical Society. of the Russian Geographical Society, Imperial Russian Geographical Society.Tartu Observatory profile re Schwarz, website. Schwarz also was a recipient of the Demidov PrizeThe Demidov Medal/Demidov Prize was an influencing forerunner to the Nobel Prize. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gdańsk
Gdańsk is a city on the Baltic Sea, Baltic coast of northern Poland, and the capital of the Pomeranian Voivodeship. With a population of 486,492, Data for territorial unit 2261000. it is Poland's sixth-largest city and principal seaport. Gdańsk lies at the mouth of the Motława River and is situated at the southern edge of Gdańsk Bay, close to the city of Gdynia and the resort town of Sopot; these form a metropolitan area called the Tricity, Poland, Tricity (''Trójmiasto''), with a population of approximately 1.5 million. The city has a complex history, having had periods of Polish, German and self rule. An important shipbuilding and trade port since the Middle Ages, between 1361 and 1500 it was a member of the Hanseatic League, which influenced its economic, demographic and #Architecture, urban landscape. It also served as Poland's principal seaport and was its largest city since the 15th century until the early 18th century when Warsaw surpassed it. With the Partition ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amur River
The Amur River () or Heilong River ( zh, s=黑龙江) is a perennial river in Northeast Asia, forming the natural border between the Russian Far East and Northeast China (historically the Outer and Inner Manchuria). The Amur ''proper'' is long, and has a drainage basin of .Амур (река в Азии) If including its main stem , the Argun, the Am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asia
Asia ( , ) is the largest continent in the world by both land area and population. It covers an area of more than 44 million square kilometres, about 30% of Earth's total land area and 8% of Earth's total surface area. The continent, which has long been home to the majority of the human population, was the site of many of the first civilisations. Its 4.7 billion people constitute roughly 60% of the world's population. Asia shares the landmass of Eurasia with Europe, and of Afro-Eurasia with both Europe and Africa. In general terms, it is bounded on the east by the Pacific Ocean, on the south by the Indian Ocean, and on the north by the Arctic Ocean. The border of Asia with Europe is a social constructionism, historical and cultural construct, as there is no clear physical and geographical separation between them. A commonly accepted division places Asia to the east of the Suez Canal separating it from Africa; and to the east of the Turkish straits, the Ural Mountains an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siberia
Siberia ( ; , ) is an extensive geographical region comprising all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has formed a part of the sovereign territory of Russia and its predecessor states since the lengthy conquest of Siberia, which began with the fall of the Khanate of Sibir in 1582 and concluded with the annexation of Chukotka in 1778. Siberia is vast and sparsely populated, covering an area of over , but home to roughly a quarter of Russia's population. Novosibirsk, Krasnoyarsk, and Omsk are the largest cities in the area. Because Siberia is a geographic and historic concept and not a political entity, there is no single precise definition of its territorial borders. Traditionally, Siberia spans the entire expanse of land from the Ural Mountains to the Pacific Ocean, with the Ural River usually forming the southernmost portion of its western boundary, and includes most of the drainage basin of the Arctic Ocean. I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaf Warbler
Leaf warblers are small insectivorous passerine birds belonging to the genus ''Phylloscopus''. Leaf warblers were formerly included in the Old World warbler family but are now considered to belong to the family Phylloscopidae, introduced in 2006. The family originally included the genus ''Seicercus'', but all species have been moved to ''Phylloscopus'' in the most recent classification. Leaf warblers are active, constantly moving, often flicking their wings as they glean the foliage for insects along the branches of trees and bushes. They forage at various levels within forests, from the top canopy to the understorey. Most of the species are markedly territorial both in their summer and winter quarters. Most are greenish or brownish above and off-white or yellowish below. Compared to some other "warblers", their songs are very simple. Species breeding in temperate regions are usually strongly migratory. Description The species are of various sizes, often green-plumaged above a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radde's Warbler
Radde's warbler (''Phylloscopus schwarzi'') is a leaf warbler which breeds in Siberia. This warbler is strongly migratory and winters in Southeast Asia. The genus name ''Phylloscopus'' is from Ancient Greek ''phullon'', "leaf", and ''skopos'', "seeker" (from ''skopeo'', "to watch"). The specific ''schwarzi'' commemorates German astronomer Ludwig Schwarz (1822–1894). Description This is a warbler similar in size to a willow warbler. The adult has an unstreaked brown back and buff underparts. There is a very long prominent whitish supercilium, and the pointed bill is thicker than that of the similar dusky warbler. The legs are paler than dusky's, and the feet look large, reflecting the more terrestrial lifestyle of this warbler. The sexes are identical, as with most warblers, but young birds are yellower below. The call is a soft ''chick''. Distribution and habitat Radde's warbler breeds in southern parts of Central and Eastern Siberia as far east as Korea and Manchuria. It i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Clausen (mathematician)
Thomas Clausen (16 January 1801, Snogbæk, Sottrup Municipality, Duchy of Schleswig – 23 May 1885, Tartu, Imperial Russia) was a Danish mathematician and astronomer. Life Clausen learned mathematics at home. In 1820, he became a trainee at the Munich Optical Institute and in 1824, at the Altona Observatory after he showed Heinrich Christian Schumacher his paper on calculating longitude by the occultation of stars by the moon. In 1828, he discovered Clausen's formula. He eventually returned to Munich, where he conceived and published his best known works on mathematics. In 1832, he discovered the Clausen function. In 1842, Clausen was hired by the staff of the Tartu Observatory, becoming its director in 1866–1872. Works by Clausen include studies on the stability of Solar System, comet movement, ABC telegraph code and calculation of 250 decimals of pi (later, only 248 were confirmed to be correct). In 1840, he discovered the Von Staudt–Clausen theorem. Also in 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tartu Observatory
The Tartu Observatory () is the largest astronomy, astronomical observatory in Estonia. On 1 January 2018, Tartu Observatory was joined again to the University of Tartu, and the observatory is now an institute of the university. It is located on the Tõravere hill, about 20 km south-west of Tartu in Nõo Parish, Tartu County. The University of Tartu Old Observatory, old Tartu Observatory, located in Tartu city centre, is known internationally for its connection to Friedrich Georg Wilhelm von Struve and the Struve Geodetic Arc, of which it is the first reference point. History The Tartu Observatory was founded at the University of Tartu, Imperial University of Dorpat as it was reopened in 1802. The observatory building was completed in 1810 on the Toome hill in Dorpat. The instruments were installed in 1814 by von Struve who subsequently started observations. In 1824, a 9" Joseph von Fraunhofer, Fraunhofer refractor arrived, the largest achromatic telescope in the world at t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gustav Radde
Gustav Ferdinand Richard Radde (27 November 1831 – 16 March 1903) was a German naturalist and Siberian explorer. Radde's warbler and several other species are named after him. Biography Radde was born in Danzig, the son of a schoolmaster. He had little formal education, and began a career as an apothecary. At an early age he was influenced by Anton Menge and became increasingly interested in natural history, and in 1852 he gave up his career and spent two years in the Crimea with the botanist Christian von Steven, collecting both plants and animals. He made further trips to southern Russia with Johann Friedrich von Brandt and Karl Ernst von Baer. He was botanist and zoologist on the East Siberian Expedition of 1855, led by the astronomer Ludwig Schwarz. In 1864 he eventually settled in Tbilisi. In the same year he explored the region surrounding Mount Elbrus, the highest mountain in the Western Palearctic. As well as collecting many plants he recorded the languages, ball ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zoologist
Zoology ( , ) is the scientific study of animals. Its studies include the structure, embryology, classification, habits, and distribution of all animals, both living and extinct, and how they interact with their ecosystems. Zoology is one of the primary branches of biology. The term is derived from Ancient Greek , ('animal'), and , ('knowledge', 'study'). Although humans have always been interested in the natural history of the animals they saw around them, and used this knowledge to domesticate certain species, the formal study of zoology can be said to have originated with Aristotle. He viewed animals as living organisms, studied their structure and development, and considered their adaptations to their surroundings and the function of their parts. Modern zoology has its origins during the Renaissance and early modern period, with Carl Linnaeus, Antonie van Leeuwenhoek, Robert Hooke, Charles Darwin, Gregor Mendel and many others. The study of animals has largely mov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Botanist
Botany, also called plant science, is the branch of natural science and biology studying plants, especially Plant anatomy, their anatomy, Plant taxonomy, taxonomy, and Plant ecology, ecology. A botanist or plant scientist is a scientist who specialises in this field. "Plant" and "botany" may be defined more narrowly to include only land plants and their study, which is also known as phytology. Phytologists or botanists (in the strict sense) study approximately 410,000 species of Embryophyte, land plants, including some 391,000 species of vascular plants (of which approximately 369,000 are flowering plants) and approximately 20,000 bryophytes. Botany originated as history of herbalism#Prehistory, prehistoric herbalism to identify and later cultivate plants that were edible, poisonous, and medicinal, making it one of the first endeavours of human investigation. Medieval physic gardens, often attached to Monastery, monasteries, contained plants possibly having medicinal benefit. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trans-Siberian Railway
The Trans-Siberian Railway, historically known as the Great Siberian Route and often shortened to Transsib, is a large railway system that connects European Russia to the Russian Far East. Spanning a length of over , it is the longest railway line in the world. It runs from the city of Moscow in the west to the city of Vladivostok in the east. During the period of the Russian Empire, government ministers—personally appointed by Alexander III and his son Nicholas II—supervised the building of the railway network between 1891 and 1916. Even before its completion, the line attracted travelers who documented their experiences. Since 1916, the Trans-Siberian Railway has directly connected Moscow with Vladivostok. , expansion projects remain underway, with connections being built to Russia's neighbors Mongolia, China, and North Korea. Additionally, there have been proposals and talks to expand the network to Tokyo, Japan, with new bridges or tunnels that would connect the main ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
