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Nevada Test Site
The Nevada National Security Sites (N2S2 or NNSS), popularized as the Nevada Test Site (NTS) until 2010, is a reservation of the United States Department of Energy located in the southeastern portion of Nye County, Nevada, about northwest of the city of Las Vegas. Formerly known as the Nevada Proving Grounds of the United States Army, the site was acquired in 1951 to be the testing venue for the American nuclear devices. The first atmospheric test was conducted at the site's Frenchman Flat area by the United States Atomic Energy Commission (USAEC) on January 27, 1951. About 928 nuclear tests were conducted here through 1994, when the United States stopped its underground nuclear testing. The site consists of about of desert and mountainous terrain. Some 1,100 buildings in 28 areas are connected by of paved roads, of unpaved roads, ten heliports, and two airstrips. The site is privately managed and operated by Mission Support and Test Services LLC, a joint venture of H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nye County, Nevada
Nye County is a County (United States), county in the U.S. state of Nevada. As of the 2020 United States census, 2020 census, the population was 51,591. Its county seat is Tonopah, Nevada, Tonopah. At , Nye is Nevada's largest county by area and the List of the largest counties in the United States by area, third-largest county in the contiguous United States, behind San Bernardino County, California, San Bernardino County of California and Coconino County, Arizona, Coconino County of Arizona. Nye County comprises the Pahrump, Nevada, Pahrump micropolitan statistical area, which is included in the Las Vegas-Henderson, Nevada, Henderson Las Vegas–Henderson, NV–AZ combined statistical area, combined statistical area. In 2010, Nevada's center of population was in southern Nye County, near Yucca Mountain. The Nevada Test Site and proposed Yucca Mountain nuclear waste repository are in southwestern Nye County, and are the focus of a great deal of controversy. The federal gove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Weapons Testing
Nuclear weapons tests are experiments carried out to determine the performance of nuclear weapons and the effects of Nuclear explosion, their explosion. Nuclear testing is a sensitive political issue. Governments have often performed tests to signal strength. Because of their destruction and fallout, testing has seen opposition by civilians as well as governments, with international bans having been agreed on. Thousands of tests have been performed, with most in the second half of the 20th century. The first nuclear device was detonated as a test by the United States at the Trinity site in New Mexico on July 16, 1945, with a yield approximately TNT equivalent, equivalent to 20 kilotons of TNT. The first thermonuclear weapon technology test of an engineered device, codenamed Ivy Mike, was tested at the Enewetak Atoll in the Marshall Islands on November 1, 1952 (local date), also by the United States. The largest nuclear weapon ever tested was the Tsar Bomba of the Soviet Union at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Fallout
Nuclear fallout is residual radioactive material that is created by the reactions producing a nuclear explosion. It is initially present in the mushroom cloud, radioactive cloud created by the explosion, and "falls out" of the cloud as it is moved by the atmosphere in the minutes, hours, and days after the explosion. The bulk of the radioactivity from nuclear fallout comes from fission products, which are created by the nuclear fission reactions of the nuclear device. Un-fissioned bomb fuel (such as plutonium and uranium), and radioactive isotopes created by neutron activation, make up a smaller amount of the radioactive content of fallout. The amount of fallout and its distribution is dependent on several factors, including the overall yield of the weapon, the fission yield of the weapon, the height of burst of the weapon, and meteorological conditions. Fallout can have serious human health consequences on both short- and long-term time scales, and can cause radioactive conta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Westerlies
The westerlies, anti-trades, or prevailing westerlies, are prevailing winds from the west toward the east in the middle latitudes between 30 and 60 degrees latitude. They originate from the high-pressure areas in the horse latitudes (about 30 degrees) and trend towards the poles and steer extratropical cyclones in this general manner. Tropical cyclones which cross the subtropical ridge axis into the westerlies recurve due to the increased westerly flow. The winds are predominantly from the southwest in the Northern Hemisphere and from the northwest in the Southern Hemisphere. The westerlies are strongest in the winter hemisphere and times when the pressure is lower over the poles, while they are weakest in the summer hemisphere and when pressures are higher over the poles. The westerlies are particularly strong, especially in the Southern Hemisphere (called also 'Brave West winds' at striking Chile, Argentina, Tasmania and New Zealand), in areas where land is absent, bec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seismic
Seismology (; from Ancient Greek σεισμός (''seismós'') meaning "earthquake" and -λογία (''-logía'') meaning "study of") is the scientific study of earthquakes (or generally, quakes) and the generation and propagation of elastic waves through planetary bodies. It also includes studies of the environmental effects of earthquakes such as tsunamis; other seismic sources such as volcanoes, plate tectonics, glaciers, rivers, oceanic microseisms, and the atmosphere; and artificial processes such as explosions. Paleoseismology is a related field that uses geology to infer information regarding past earthquakes. A recording of Earth's motion as a function of time, created by a seismograph is called a seismogram. A seismologist is a scientist who works in basic or applied seismology. History Scholarly interest in earthquakes can be traced back to antiquity. Early speculations on the natural causes of earthquakes were included in the writings of Thales of Miletus () ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Princeton University Press
Princeton University Press is an independent publisher with close connections to Princeton University. Its mission is to disseminate scholarship within academia and society at large. The press was founded by Whitney Darrow, with the financial support of Charles Scribner, as a printing press to serve the Princeton community in 1905. Its distinctive building was constructed in 1911 on William Street in Princeton. Its first book was a new 1912 edition of John Witherspoon's ''Lectures on Moral Philosophy.'' History Princeton University Press was founded in 1905 by a recent Princeton graduate, Whitney Darrow, with financial support from another Princetonian, Charles Scribner II. Darrow and Scribner purchased the equipment and assumed the operations of two already existing local publishers, that of the ''Princeton Alumni Weekly'' and the Princeton Press. The new press printed both local newspapers, university documents, '' The Daily Princetonian'', and later added book publishing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Adams (photographer)
Robert Adams (born 1937) is an American photographer who has focused on the changing landscape of the American West.Robert Adams , , Chicago His work first came to prominence in the mid-1970s through his book ''The New West'' (1974) and his participation in the exhibition '' New Topographics: Photographs of a Man-Altered Landscape'' in 1975. He has received two |
Emmet Gowin
Emmet Gowin (born 1941) is an American photographer. He first gained attention in the 1970s with his intimate portraits of his wife, Edith, and her family. Later he turned his attention to the landscapes of the American West, taking aerial photographs of places that had been changed by humans or nature, including the Hanford Site, Mount St. Helens, and the Nevada Test Site. Gowin taught at Princeton University for more than 35 years. Life and career Gowin was born in Danville, Virginia. His father, Emmet Sr., was a Methodist minister and his Quaker mother played the organ in church. When he was two his family moved to Chincoteague Island, where he spent much of his free time in the marshes around their home drawing animals and plant life. At about age 12 his family moved back to Danville, where Gowin. When he was 16 he saw an Ansel Adams photograph of a burnt tree with a young bud growing from the stump. This inspired him to go into the woods near his home and draw from nature ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Las Vegas Strip
The Las Vegas Strip is a stretch of Las Vegas Boulevard in Clark County, Nevada, that is known for its concentration of resort hotels and casinos. The Strip, as it is known, is about long, and is immediately south of the Las Vegas city limits in the unincorporated towns of Paradise and Winchester, but is often referred to simply as "Las Vegas". Many of the largest hotel casino and resort properties in the world are on the Strip. Its hotels, casinos, restaurants, residential high-rises, entertainment offerings, and skyline have established the Strip as one of the most popular and iconic tourist destinations in the world and is one of the driving forces for Las Vegas's economy. Most of the Strip has been designated as an All-American Road, and the North and South Las Vegas Strip routes are classified as Nevada Scenic Byways and National Scenic Byways. Boundaries Historically, casinos that were not in Downtown Las Vegas along Fremont Street sat outside the city limits on L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mushroom Cloud
A mushroom cloud is a distinctive mushroom-shaped flammagenitus cloud of debris, smoke, and usually condensed water vapour resulting from a large explosion. The effect is most commonly associated with a nuclear explosion, but any sufficiently energetic detonation or deflagration will produce a similar effect. They can be caused by powerful conventional weapons, including thermobaric weapons such as the Father of All Bombs, ATBIP and GBU-43/B MOAB. Some Eruption column, volcanic eruptions and impact events can produce natural mushroom clouds. Mushroom clouds result from the sudden formation of a large volume of lower-density gases at any altitude, causing a Rayleigh–Taylor instability. The buoyant mass of gas rises rapidly, resulting in turbulent vortices curling downward around its edges, forming a temporary vortex ring that draws up a central column, possibly with smoke, debris, condensed water vapor, or a combination of these, to form the "mushroom stem". The mass of gas plu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huntington Ingalls Industries
Huntington Ingalls Industries, Inc. (HII) is the largest military shipbuilding company in the United States as well as a provider of professional services to partners in government and industry. HII, ranked No. 375 on the Fortune 500, was formed on 31 March 2011, as a Divestment, divestiture from Northrop Grumman. HII comprises three divisions: Newport News Shipbuilding in Virginia, Ingalls Shipbuilding in Mississippi, and Mission Technologies. In April 2022, Huntington Ingalls Industries changed its branding name to HII. History When it spun off as a new company on 31 March 2011, Huntington Ingalls Industries comprised Northrop Grumman’s shipbuilding businesses in Newport News, Virginia, Pascagoula, Mississippi, and Avondale, Louisiana; Avondale was closed in 2014. Since its creation, HII has built and expanded its professional and government services through the acquisitions oUniversalPegasus International the S.M. Stoller Corporation, Camber Corporation, Novonics, the C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jacobs Solutions
Jacobs Solutions Inc. is an American international technical professional services firm based in Dallas. The company provides engineering, technical, professional, and construction services as well as scientific and specialty consulting for a broad range of clients globally, including companies, organizations, and government agencies. Jacobs has consistently ranked No. 1 on both ''Engineering News-Record'' (ENR)'s 2018, 2019, 2020, 2021, 2022, and 2023 Top 500 Design Firms and ''Trenchless Technology''’s 2018, 2019, 2020, and 2021 Top 50 Trenchless Engineering Firms. Its worldwide annual revenue were over $14 billion in the 2021 fiscal year, and earnings rose to $477 million. Overview Jacobs Engineering was founded in 1947, by Joseph J. Jacobs. The company's chief executive officer is Bob Pragada. He has been the CEO since January 2023. Steve Demetriou, the CEO from 2015 to 2023, now serves as the executive chair. The previous president and CEO was Craig L. Martin from 2006 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
