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Aleksandr Sergeevič Višnevskij
Aleksandr Sergeyevich Vishnevsky ( , Aleksandr Sergeevič Višnevskij, Alexander Sergeyevich Vishnevsky) (18 August 1955 13 June 2015) was a Russian speleologist, most known for his cave exploration work in the Urals and in Uzbekistan. After 2000 the latter area of his work became one of the speleology hotspots as it includes the Boybuloq, the deepest cave in Central and East Asia, and one of the deepest caves in the world. Early life, education and career He was born into the family of Sergej Pantelejmonovič Višnevskij, a military civil engineer and builder of Kolcovo airfield in Sverdlovsk and of Marija Georgievna Višnevskaja, a chemist. After elementary and middle school in Sverdlovsk Višnevskij graduated, in 1978, at the Faculty of Geography and Biology of the Ural State Pedagogical University, also in Sverdlovsk. After graduation he followed the compulsory state assignment to teach geography at a school for troubled teenagers in Polunočnoe idnight Place in the n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samarkand
Samarkand ( ; Uzbek language, Uzbek and Tajik language, Tajik: Самарқанд / Samarqand, ) is a city in southeastern Uzbekistan and among the List of oldest continuously inhabited cities, oldest continuously inhabited cities in Central Asia. Samarkand is the capital of the Samarkand Region and a district-level city, that includes the urban-type settlements Kimyogarlar, Farxod, Farhod and Xishrav, Khishrav. With 551,700 inhabitants (2021), it is the List of cities in Uzbekistan, third-largest city in Uzbekistan. There is evidence of human activity in the area of the city dating from the late Paleolithic Era. Though there is no direct evidence of when Samarkand was founded, several theories propose that it was founded between the 8th and 7th centuries BC. Prospering from its location on the Silk Road between East Asia, China, Persia and Europe, at times Samarkand was one of the largest cities in Central Asia,Guidebook of history of Samarkand", and was an important city of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caving Equipment
Caving equipment is equipment used by cavers and speleologists to aid and protect them while exploring caves. The term may also be used to refer to equipment used to document caves, such as photographic and surveying equipment. Originally, cave diving equipment was quite limited, but the increasing popularity of caving during the 20th century led to the creation of specialist caving equipment and companies. Due to the greatly varying conditions of caves throughout the world, there is a multitude of different equipment types and categories. Cavers exploring a largely dry system may wear a fleece one-piece undersuit with a protective oversuit while cavers exploring a very wet cave may opt to use wetsuits. Cavers in large dry systems in the tropics and in desert climates may simply opt to wear shorts and a T-shirt. History The earliest cavers in Europe and North America were limited in their explorations by a lack of suitable equipment. Explorers of the early 1800s, when caving ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caving
Caving, also known as spelunking (United States and Canada) and potholing (United Kingdom and Ireland), is the recreational pastime of exploring wild cave systems (as distinguished from show caves). In contrast, speleology is the scientific study of caves and the cave environment.Caving in New Zealand (from Te Ara: The Encyclopedia of New Zealand, Accessed 2012-11.) The challenges involved in caving vary according to the cave being visited; in addition to the total absence of light beyond the entrance, negotiating pitches, squeezes, and water hazards can be difficult. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dissolution Of The Soviet Union
The Soviet Union was formally dissolved as a sovereign state and subject of international law on 26 December 1991 by Declaration No. 142-N of the Soviet of the Republics of the Supreme Soviet of the Soviet Union. Declaration No. 142-Н of the Soviet of the Republics of the Supreme Soviet of the Soviet Union, formally establishing the dissolution of the Soviet Union as a state and subject of international law. It also brought an end to the Soviet Union's federal government and General Secretary (also President) Mikhail Gorbachev's effort to reform the Soviet political and economic system in an attempt to stop a period of political stalemate and economic backslide. The Soviet Union had experienced internal stagnation and ethnic separatism. Although highly centralized until its final years, the country was made up of 15 top-level republics that served as the homelands for different ethnicities. By late 1991, amid a catastrophic political crisis, with several republics al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bzyb Range
Bzyb Mountain Range GeoNames ( ka, ბზიფის ქედი, ''bzipis kedi''; , ''Ageish'kha'') is a mountain range in Abkhazia, Georgia (country), Georgia on the southern slope of the western part of Greater Caucasus. The ridge is about 50 km long. Geography The Bzyb Range's length is about 50 km and elevation is up to 3,033 m, it is made mainly of limestone with pronounced karst landscape. It is bounded by the valley of the Bzyb River from the north and west and partially by the valley of Kelasuri River, which separates it from the Abkhaz Range. The highest point is mountain Khimsa (mountain), Khimsa (3032 m),Mta Khimsa 3032 mGeoNames the second highest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arabika Massif
Arabika Massif (Arabika) is a glacially eroded karst outcropping of the Gagra Range, Abkhazia, Georgia in the West Caucasus, by the city of Gagra. The highest elevation - mountain Arabika is .Mta Arabika Geology The 13-km-long massif is composed of and s that[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chelyabinsk
Chelyabinsk; , is the administrative center and largest types of inhabited localities in Russia, city of Chelyabinsk Oblast, Russia. It is the List of cities and towns in Russia by population, seventh-largest city in Russia, with a population of over 1.1 million people, and the second-largest city in the Ural Federal District, after Yekaterinburg. Chelyabinsk is located to the east behind the south part of the Ural Mountains and runs along the Miass (river), Miass River. The area of Chelyabinsk contained the ancient settlement of Arkaim, which belonged to the Sintashta culture. In 1736, a fortress by the name of Chelyaba was founded on the site of a Bashkirs, Bashkir village. Chelyabinsk was granted town status by 1787. Chelyabinsk began to grow rapidly by the early 20th century as a result of the construction of railway links from the European Russia, Russian core to Siberia, including the Trans-Siberian Railway. Its population reached 70,000 by 1917. Under the Soviet Union, C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gissar Range
The Hisar Range, formerly the Gissar Range, is a mountain range in Central Asia, in the western part of the Pamir-Alay system, stretching over 200 km in the general east–west direction across the territory of Tajikistan and Uzbekistan. Geography The Hisar Range lies south of the Zarafshon Range, extending north of Dushanbe through Tajikistan's Hissar District of the Districts of Republican Subordination and reaching Uzbekistan at the north tip of Surxondaryo Region. The highest point in the Hissar Range is Alpomish Peak, confirmed when a 2023 survey determined nearby Khazret Sultan to be shorter. With an elevation of , the mountain is located on the Uzbekistan-Tajikistan border, just north-west of Dushanbe, and is also the highest point in Uzbekistan. The Hissar Range is composed of crystalline rocks, schist, and sandstone, punctured by granite Granite ( ) is a coarse-grained (phanerite, phaneritic) intrusive rock, intrusive igneous rock composed mostly of qua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Baikal
Lake Baikal is a rift lake and the deepest lake in the world. It is situated in southern Siberia, Russia between the Federal subjects of Russia, federal subjects of Irkutsk Oblast, Irkutsk Oblasts of Russia, Oblast to the northwest and the Republic of Buryatia to the southeast. At —slightly larger than Belgium—Lake Baikal is the world's List of lakes by area, seventh-largest lake by surface area, as well as the second largest lake in Eurasia after the Caspian Sea. However, because it is also the List of lakes by depth, deepest lake, with a maximum depth of , Lake Baikal is the world's List of lakes by volume, largest freshwater lake by volume, containing of water or 22–23% of the world's fresh surface water, more than all of the North American Great Lakes combined. It is also the world's ancient lake, oldest lake at 25–30 million years, and among the clearest. It is estimated that the lake contains around 19% of the unfrozen fresh water on the planet. Lake Baikal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gubakha
Gubakha () is a town in Perm Krai, Russia, located on the Kosva River ( Kama's tributary A tributary, or an ''affluent'', is a stream or river that flows into a larger stream (''main stem'' or ''"parent"''), river, or a lake. A tributary does not flow directly into a sea or ocean. Tributaries, and the main stem river into which they ...) northeast of Perm. Population: History Gubakha arose in 1755 due to the discovery of iron ore in Krestovaya mountain. The village of Gubakha stood at the confluence of the Gubashka River into the Kosva River and served as a wharf for barges that transported iron ore from the upper Kosva to the Kama. In 1825 first coal was found in Gubakha on Krestovaya mountain where the first mine adit was laid. Initially coal mining was carried out in very limited extent, the coal was fused down the Kosva river to the smelting works. After the railway was built in 1879 the coal mining increased sharply. In 1928 Gubakha was given a status of city sett ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perm, Russia
Perm (, ; ; ), previously known as Yegoshikha, Yagoshikha (; 1723–1781) and Molotov (; 1940–1957), is the administrative centre of Perm Krai in the European part of Russia. It sits on the banks of the Kama River near the Ural Mountains, covering an area of . With over one million residents Perm is the List of cities and towns in Russia by population, 15th-largest city in Russia and the 5th-largest in the Volga Federal District. Economy In 1723, a copper-smelting works was founded at the village of ''Yagoshikha''. In 1781 the settlement of Yagoshikha became the town of ''Perm''. Perm's position on the navigable Kama River, leading to the Volga, and on the Siberian Route across the Ural Mountains, helped it become an important trade and manufacturing centre. It also lay along the Trans-Siberian Railway. Perm grew considerably as industrialization proceeded in the Urals during the Soviet period, and in 1940 was named ''Molotov'' in honour of Vyacheslav Molotov. In 1957 the ci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optymistychna Cave
The Optymistychna (, also known as Peshchera Optimistitscheskaya) is a gypsum cave located near the Ukrainian village of Korolivka, Chortkiv Raion, Ternopil Oblast. Approximately of passageways have been mapped within. As a result, it is the longest cave in Europe and the seventh-longest cave in the world, after Mammoth Cave, Sistema Sac Actun, Jewel Cave, Shuanghedong and Sistema Ox Bel Ha. It is also the longest gypsum cave in the world. History The cave complex was discovered by members of the Lviv speleological club "Cyclope" in 1966. It was entirely unknown before then. There have been more than 50 expeditions since its discovery, but exploration has slowed significantly in recent years, and very little surveying is currently being done. The cave is located very close to the Priest's Grotto or Ozerna Cave, the eleventh-longest cave in the world at , but the two caves have not yet been found to be connected. In 2008, the cave was recognized as a Natural Wonder o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
