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Johann Georg Gmelin
Johann Georg Gmelin (8 August 1709 – 20 May 1755) was a German naturalist, botanist and geographer. Early life and education Gmelin was born in Tübingen, the son of a professor at the University of Tübingen. He was a gifted child and began attending university lectures at the age of 14. In 1727, he graduated with a medical degree at the age of 18. He then travelled to St Petersburg and obtained a fellowship at the Academy of Sciences in 1728. He lectured at the university from 1730, and in the following year was appointed professor of chemistry and natural history. At his suggestion, Johann Amman left Hans Sloane in London to take up a post in St Petersburg. The final two volumes of Johann Christian Buxbaum's (1693–1730) ''Centuria'' were published posthumously by Gmelin. The Second Kamchatka Expedition Gmelin was elected one out of three professors to join Vitus Bering’s Second Kamchatka Expedition (1733–1743). During the early part of the expedition - leaving ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tübingen
Tübingen (; ) is a traditional college town, university city in central Baden-Württemberg, Germany. It is situated south of the state capital, Stuttgart, and developed on both sides of the Neckar and Ammer (Neckar), Ammer rivers. about one in three of the 90,000 people living in Tübingen is a student. As of the 2018/2019 winter semester, 27,665 students attend the University of Tübingen, Eberhard Karl University of Tübingen. The city has the lowest median age in Germany, in part due to its status as a university city. As of December 31, 2015, the average age of a citizen of Tübingen is 39.1 years. Immediately north of the city lies the Schönbuch, a densely wooded nature park. The Swabian Alb mountains rise about (beeline Tübingen City to Roßberg - 869 m) to the southeast of Tübingen. The Ammer and Steinlach rivers are Tributary, tributaries of the Neckar river, which flows in an easterly direction through the city, just south of the Middle Ages, medieval old town. La ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Christian Buxbaum
Johann Christian Buxbaum (no later than 5 October 1693 – 7 July 1730), was a German physician, botanist, entomologist and traveller. He was born in Merseburg and studied medicine at the Universities of Leipzig, Wittenberg, Jena, and Leyden. In 1721 he was invited by Peter the Great, tsar of Russia, to take up a position as botanist in the Physical Garden, at the Medical Collegium in St Petersburg. In 1724 he became a member of the St Petersburg Academy of Arts and Sciences and a professor at the Academic Gymnasium. In his capacity as a physician, Buxbaum in 1724 was called upon to accompany Alexander Rumyantsev to Constantinopolis, in a Russian diplomatic mission to Turkey. He used this opportunity to visit Greece. On his way back from Constantinopolis he visited Asia Minor, travelling through Baku and Derbent he reached Astrachan, to return, finally, to St Petersburg (in 1727). He died in Wermsdorf, Saxony. He is commemorated in the moss genus '' Buxbaumia'' (also th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mediterranean Sea
The Mediterranean Sea ( ) is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean basin and almost completely enclosed by land: on the east by the Levant in West Asia, on the north by Anatolia in West Asia and Southern Europe, on the south by North Africa, and on the west almost by the Morocco–Spain border. The Mediterranean Sea covers an area of about , representing 0.7% of the global ocean surface, but its connection to the Atlantic via the Strait of Gibraltar—the narrow strait that connects the Atlantic Ocean to the Mediterranean Sea and separates the Iberian Peninsula in Europe from Morocco in Africa—is only wide. Geological evidence indicates that around 5.9 million years ago, the Mediterranean was cut off from the Atlantic and was partly or completely desiccation, desiccated over a period of some 600,000 years during the Messinian salinity crisis before being refilled by the Zanclean flood about 5.3 million years ago. The sea was an important ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caspian Sea
The Caspian Sea is the world's largest inland body of water, described as the List of lakes by area, world's largest lake and usually referred to as a full-fledged sea. An endorheic basin, it lies between Europe and Asia: east of the Caucasus, west of the broad steppe of Central Asia, south of the fertile plains of Southern Russia in Eastern Europe, and north of the mountainous Iranian Plateau. It covers a surface area of (excluding the highly saline lagoon of Garabogazköl to its east), an area approximately equal to that of Japan, with a volume of . It has a salinity of approximately 1.2% (12 g/L), about a third of the salinity of average seawater. It is bounded by Kazakhstan to the northeast, Russia to the northwest, Azerbaijan to the southwest, Iran to the south, and Turkmenistan to the southeast. The name of the Caspian Sea is derived from the ancient Iranian peoples, Iranic Caspians, Caspi people. The sea stretches from north to south, with an average width of . Its gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Temperature
Temperature is a physical quantity that quantitatively expresses the attribute of hotness or coldness. Temperature is measurement, measured with a thermometer. It reflects the average kinetic energy of the vibrating and colliding atoms making up a substance. Thermometers are calibrated in various temperature scales that historically have relied on various reference points and thermometric substances for definition. The most common scales are the Celsius scale with the unit symbol °C (formerly called ''centigrade''), the Fahrenheit scale (°F), and the Kelvin scale (K), with the third being used predominantly for scientific purposes. The kelvin is one of the seven base units in the International System of Units (SI). Absolute zero, i.e., zero kelvin or −273.15 °C, is the lowest point in the thermodynamic temperature scale. Experimentally, it can be approached very closely but not actually reached, as recognized in the third law of thermodynamics. It would be impossible ... [...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] |
Europe
Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east. Europe shares the landmass of Eurasia with Asia, and of Afro-Eurasia with both Africa and Asia. Europe is commonly considered to be Boundaries between the continents#Asia and Europe, separated from Asia by the Drainage divide, watershed of the Ural Mountains, the Ural (river), Ural River, the Caspian Sea, the Greater Caucasus, the Black Sea, and the waterway of the Bosporus, Bosporus Strait. "Europe" (pp. 68–69); "Asia" (pp. 90–91): "A commonly accepted division between Asia and Europe ... is formed by the Ural Mountains, Ural River, Caspian Sea, Caucasus Mountains, and the Black Sea with its outlets, the Bosporus and Dardanelles." Europe covers approx. , or 2% of Earth#Surface, Earth's surface (6.8% of Earth's land area), making it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yenisey
The Yenisey or Yenisei ( ; , ) is the list of rivers by length, fifth-longest river system in the world, and the largest to drain into the Arctic Ocean. Rising in Mungaragiyn-gol in Mongolia, it follows a northerly course through Lake Baikal and the Krasnoyarsk Dam before draining into the Yenisey Gulf in the Kara Sea. The Yenisey divides the Western Siberian Plain in the west from the Central Siberian Plateau to the east; it drains a large part of central Siberia. Its delta is formed between the Gyda Peninsula and the Taymyr Peninsula. It is the central one of three large Siberian rivers that flow into the Arctic Ocean (the other two being the Ob (river), Ob and the Lena River, Lena). The maximum depth of the Yenisey is and the average depth is . Geography The Yenisey proper, from the confluence of its source rivers the Great Yenisey and Little Yenisey at Kyzyl to its mouth in the Kara Sea, is long. From the source of its tributary the Selenga, it is long. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yeniseysk
Yeniseysk ( rus, Енисейск, p=jɪnʲɪˈsʲejsk) is a town in Krasnoyarsk Krai, Russia, located on the Yenisei River. Population: 20,000 (1970). History Yeniseysk was founded in 1619 as a stockaded town—the first town on the Yenisei River. It played an important role in Russian colonization of East Siberia in the 17th–18th centuries. Its location is due to the Siberian River Routes from the Urals, up the Ob, up the Ket River and over a portage to Yeniseysk and from there to the Yenisei basin. It became less important due to road and rail building further south. Its old town is included by the Russian government in the country's tentative World Heritage List. Administrative and municipal status Within the framework of administrative divisions, Yeniseysk serves as the administrative center of Yeniseysky District, even though it is not a part of it.Law #10-4765 As an administrative division, it is incorporated separately as the krai town of Yeniseysk—an administ ... [...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] |
Ural Mountains
The Ural Mountains ( ),; , ; , or simply the Urals, are a mountain range in Eurasia that runs north–south mostly through Russia, from the coast of the Arctic Ocean to the river Ural (river), Ural and northwestern Kazakhstan.Ural Mountains , Encyclopædia Britannica on-line The mountain range forms part of the Boundaries between the continents of Earth, conventional boundary between the continents of Europe and Asia, marking the separation between European Russia and Siberia. Vaygach Island and the islands of Novaya Zemlya form a further continuation of the chain to the north into the Arctic Ocean. The average altitudes of the Urals are around , the highest point being Mount Narodnaya, which reaches a height of . The mountains lie within the Ural (region), Ural geographical region and significantl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stepan Krasheninnikov
Stepan Petrovich Krasheninnikov (; – ) was a Russian explorer of Siberia, naturalist and geographer who gave the first full description of Kamchatka in the early 18th century. He was elected to the Russian Academy of Sciences in 1745. The Krasheninnikov Volcano on Kamchatka is named in his honour. Early life Krasheninnikov was educated in the Slavic Greek Latin Academy of Moscow (1724–32), where Lomonosov was his class-mate. As part of Vitus Bering’s extensive preparations for the Second Kamchatka Expedition, 12 students from the academy were selected as potential student interns or assistants for the professors – Krasheninnikov being one of them. Thus, he furthered his education in St Petersburg before embarking upon the Second Kamchatka Expedition (1731–42). The Second Kamchatka Expedition Krasheninnikov studied plants, animals and minerals, but in addition he developed a strong interest in Siberian history and geography. During the early part of the expeditio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
