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Tired Mountain Syndrome
Tired mountain syndrome is a condition in which underground nuclear testing fractures and weakens rock, increasing permeability and the risk of release of radionuclides and radioactive contamination of the environment. Locations said to have undergone the syndrome include the French Polynesian island of Moruroa, Rainier Mesa in the United States, the Dnepr 1 nuclear test site on the Kola Peninsula The Kola Peninsula (; ) is a peninsula in the extreme northwest of Russia, and one of the largest peninsulas of Europe. Constituting the bulk of the territory of Murmansk Oblast, it lies almost completely inside the Arctic Circle and is border ... in Russia, possibly Mount Lazarev in the Novaya Zemlya Test Site in Russia, and Mount Mantap in North Korea. See also * Subsidence crater Footnotes References {{reflist, 30em Underground nuclear weapons testing Geological hazards ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Lazarev
Mount Lazarev (Гора Лазарева, "Gora Lazareva") is a massif on the northern portion of Yuzhny Island, Novaya Zemlya, in Russia. It was used for many Soviet nuclear tests, starting with the first underground nuclear test on Novaya Zemlya, 18 September 1964, which may have resulted in tired mountain syndrome Tired mountain syndrome is a condition in which underground nuclear testing fractures and weakens rock, increasing permeability and the risk of release of radionuclides and radioactive contamination of the environment. Locations said to have under .... References {{ArkhangelskOblast-geo-stub Lazarev Russian nuclear test sites Novaya Zemlya ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subsidence Crater
__NOTOC__ A subsidence crater is a hole or depression left on the surface of an area which has had an underground (usually nuclear) explosion. Many such craters are commonly present at bomb testing areas; one notable example is the Nevada Test Site, which was historically used for nuclear weapons testing over a period of 41 years. Subsidence craters are created as the roof of the cavity caused by the explosion collapses. This causes the surface to depress into a sink (which subsidence craters are sometimes called; see sink hole). It is possible for further collapse to occur from the sink into the explosion chamber. When this collapse reaches the surface, and the chamber is exposed atmospherically to the surface, it is referred to as a ''chimney''. It is at the point that a chimney is formed through which radioactive fallout may reach the surface. At the Nevada Test Site, depths of were used for tests. When the material above the explosion is solid rock, then a mound may be f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Washington Post
''The Washington Post'', locally known as ''The'' ''Post'' and, informally, ''WaPo'' or ''WP'', is an American daily newspaper published in Washington, D.C., the national capital. It is the most widely circulated newspaper in the Washington metropolitan area and has a national audience. As of 2023, the ''Post'' had 130,000 print subscribers and 2.5 million digital subscribers, both of which were the List of newspapers in the United States, third-largest among U.S. newspapers after ''The New York Times'' and ''The Wall Street Journal''. The ''Post'' was founded in 1877. In its early years, it went through several owners and struggled both financially and editorially. In 1933, financier Eugene Meyer (financier), Eugene Meyer purchased it out of bankruptcy and revived its health and reputation; this work was continued by his successors Katharine Graham, Katharine and Phil Graham, Meyer's daughter and son-in-law, respectively, who bought out several rival publications. The ''Post ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Straits Times
''The Straits Times'' (also known informally by its abbreviation ''ST'') is a Singaporean daily English-language newspaper owned by the SPH Media Trust. Established on 15 July 1845, it is the most-widely circulated newspaper in the country and has a significant regional audience. The newspaper is published in the broadsheet format and online, the latter of which was launched in 1994. It is regarded as the newspaper of record for Singapore. Print and digital editions of ''The Straits Times'' and ''The Sunday Times'' had a daily average circulation of 364,134 and 364,849 respectively in 2017, as audited by Audit Bureau of Circulations Singapore. In 2014, country-specific editions were published for residents in Brunei and Myanmar, with newsprint circulations of 2,500 and 5,000 respectively. History Early years The original conception for ''The Straits Times'' has been debated by historians of Singapore. Prior to 1845, the only English-language newspaper in Singapore was ''The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agence France-Presse
Agence France-Presse (; AFP) is a French international news agency headquartered in Paris, France. Founded in 1835 as Havas, it is the world's oldest news agency. With 2,400 employees of 100 nationalities, AFP has an editorial presence in 260 cities across 150 countries. Its main regional headquarters are based in Nicosia, Montevideo, Hong Kong and Washington, D.C. AFP publishes stories, videos, photos and graphics in French, English, Arabic, Portuguese, Spanish, and German. Two-thirds of its turnover comes from its own commercial activities, with the remaining one-third being provided by the French government (amounting to 113.3 million euros in 2022) as compensation for carrying out its mission of general interest. In December 2024, AFP was ranked as the 27th most visited news site in the world, with over 105 million monthly readers. History Agence France-Presse has its origins in the Agence Havas, founded in 1835 in Paris by Charles-Louis Havas, making it the world's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Popular Mechanics
''Popular Mechanics'' (often abbreviated as ''PM'' or ''PopMech'') is a magazine of popular science and technology, featuring automotive, home, outdoor, electronics, science, do it yourself, and technology topics. Military topics, aviation and transportation of all types, space, tools and gadgets are commonly featured. It was founded in 1902 by Henry Haven Windsor, who was the editor and—as owner of the Popular Mechanics Company—the publisher. For decades, the tagline of the monthly magazine was "Written so you can understand it." In 1958, PM was purchased by the Hearst Corporation, now Hearst Communications. In 2013, the US edition changed from twelve to ten issues per year, and in 2014 the tagline was changed to "How your world works." The magazine added a podcast in recent years, including regular features ''Most Useful Podcast Ever'' and ''How Your World Works''. History ''Popular Mechanics'' was founded as a weekly in Chicago by Henry Haven Windsor, with the first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Mantap
Mantapsan (or Mount Mant'ap, ) is a mountain in the south of North Hamgyong Province in North Korea. The granite peak, which reaches an elevation of , is part of the Hamgyong Mountains. It is located on the border between Kilju County, Myŏnggan County and Orang County. Political prisoners were reportedly forced to dig tunnels into the southern side of the mountain, at the nuclear test site near P'unggye-ri. The horizontal tunnels are believed to be two to three meters wide and high and hundreds of meters long. This is where the detonations of the North Korean nuclear tests in 2006, 2009, 2013 and 2016 occurred. International analysts believe that the sixth and largest explosion, as of January 2024 the last, "made the mountain bulge sideways by about 12 feet and collapse vertically by about a foot and a half", with one seismologist describing the subsequent reaction as the mountain "pancaking". Hwasong concentration camp, at the largest North Korean concentration camp, is l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Matochkin Shar
Matochkin Strait or Matochkin Shar () is a strait, structurally a fjord, between the Severny and Yuzhny Islands of Novaya Zemlya. It connects the Barents Sea and the Kara Sea. Geography The Matochkin Strait is one of the largest fjords in the world. The banks along the strait are high and steep. Its length is approximately and its width in its narrowest part is approximately . The strait is covered with ice for most of the year. There are abandoned fishing settlements along the strait (Matochkin Shar, Stolbovoy). History The Tsar Bomba was detonated in October 1961, in the vicinity of Matochkin Strait, over the Novaya Zemlya archipelago. It is also the site where, from 1963 to 1990, about 39 underground nuclear tests took place in a vast array of tunnels and shafts under Mount Lazarev and other massifs. After 2000, Russia started to reactivate the test site by enlarging old tunnels and starting construction work. Each summer since then various subcritical hydronuclear experi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Novaya Zemlya
Novaya Zemlya (, also , ; , ; ), also spelled , is an archipelago in northern Russia. It is situated in the Arctic Ocean, in the extreme northeast of Europe, with Cape Flissingsky, on the northern island, considered the extreme points of Europe, easternmost point of Europe. To Novaya Zemlya's west lies the Barents Sea and to the east is the Kara Sea. Novaya Zemlya consists of two main islands, the northern Severny Island and the southern Yuzhny Island, which are separated by the Matochkin Strait. Subdivisions of Russia#Administrative divisions, Administratively, it is incorporated as Novaya Zemlya District, one of the administrative divisions of Arkhangelsk Oblast, twenty-one in Arkhangelsk Oblast, Russia.Law #65-5-OZ Municipal divisions of Russia, Municipally, it is incorporated as Novaya Zemlya Urban Okrug.Law #258-vneoch.-OZ Novaya Zemlya was a sensitive military area during the Cold War, and parts of it are still used for airfields today. The Soviet Air Forces, Soviet Air F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kola Peninsula
The Kola Peninsula (; ) is a peninsula in the extreme northwest of Russia, and one of the largest peninsulas of Europe. Constituting the bulk of the territory of Murmansk Oblast, it lies almost completely inside the Arctic Circle and is bordered by the Barents Sea to the north and by the White Sea to the east and southeast. The city of Murmansk, the most populous settlement on the peninsula, has a population of roughly 270,000 residents. While humans had already settled in the north of the peninsula in the 7th–5th millennium BC, the rest of its territory remained uninhabited until the 3rd millennium BC, when various peoples started to arrive from the south. By the 1st millennium CE only the Sami people remained. This changed in the 12th century, when Russian Pomors discovered the peninsula's rich resources of game and fish. Soon after, the Pomors were followed by the tribute collectors from the Novgorod Republic, and the peninsula gradually became a part of the Novgorodian la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Underground Nuclear Testing
Underground nuclear testing is the test detonation of nuclear weapons that is performed underground. When the device being tested is buried at sufficient depth, the nuclear explosion may be contained, with no release of radioactive materials to the atmosphere. The extreme heat and pressure of an underground nuclear explosion cause changes in the surrounding rock. The rock closest to the location of the test is vaporised, forming a cavity. Farther away, there are zones of crushed, cracked, and irreversibly strained rock. Following the explosion, the rock above the cavity may collapse, forming a rubble chimney. If this chimney reaches the surface, a bowl-shaped subsidence crater may form. The first underground test took place in 1951. Further tests soon led scientists to conclude that even notwithstanding environmental and diplomatic considerations, underground testing was of far greater scientific value than all other forms of testing. This understanding strongly influenced ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
