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Parsons Corporation
Parsons Corporation (Parsons) is an American technology-focused defense, intelligence, security, and infrastructure engineering firm headquartered in Centreville, Virginia. The company was founded in 1944. Parsons has more than 16,000 employees across 24 countries. Carey Smith serves as Chairwoman, President, and CEO of Parsons. The company has been named as one of the World’s Most Ethical Companies by Ethisphere for 13 consecutive years. History Parsons was founded by Ralph M. Parsons in 1944. The company delivered electronics, instrumentation, ground checkout systems design, and engineering for aircraft, missiles and rockets during the Cold War. In 1974, Parsons opened the first part of its headquarters in Pasadena. In 2004, a $29.5 million contract was given to both Parsons and Gilbert Southern/Massman Construction to redo a portion of the Escambia Bay Bridge near Pensacola, FL after Hurricane Ivan made landfall and knocked off 58 spans of the original bridge and misali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Public Company
A public company is a company whose ownership is organized via shares of stock which are intended to be freely traded on a stock exchange or in over-the-counter markets. A public (publicly traded) company can be listed on a stock exchange (listed company), which facilitates the trade of shares, or not (unlisted public company). In some jurisdictions, public companies over a certain size must be listed on an exchange. In most cases, public companies are ''private'' enterprises in the ''private'' sector, and "public" emphasizes their reporting and trading on the public markets. Public companies are formed within the legal systems of particular states, and therefore have associations and formal designations which are distinct and separate in the polity in which they reside. In the United States, for example, a public company is usually a type of corporation (though a corporation need not be a public company), in the United Kingdom it is usually a public limited company (plc), i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Los Angeles Times
The ''Los Angeles Times'' (abbreviated as ''LA Times'') is a daily newspaper that started publishing in Los Angeles in 1881. Based in the LA-adjacent suburb of El Segundo since 2018, it is the sixth-largest newspaper by circulation in the United States. The publication has won more than 40 Pulitzer Prizes. It is owned by Patrick Soon-Shiong and published by the Times Mirror Company. The newspaper’s coverage emphasizes California and especially Southern California stories. In the 19th century, the paper developed a reputation for civic boosterism and opposition to labor unions, the latter of which led to the bombing of its headquarters in 1910. The paper's profile grew substantially in the 1960s under publisher Otis Chandler, who adopted a more national focus. In recent decades the paper's readership has declined, and it has been beset by a series of ownership changes, staff reductions, and other controversies. In January 2018, the paper's staff voted to unionize and final ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
25 De Abril Bridge
The 25 de Abril Bridge ( pt, Ponte 25 de Abril, 25th of April Bridge, ) is a suspension bridge connecting the city of Lisbon, capital of Portugal, to the municipality of Almada on the left (south) bank of the Tagus river. It has a total length of , making it the 46th longest suspension bridge in the world. From its inauguration on 6 August 1966 up to 1974, the bridge was named Salazar Bridge (), after Portuguese Prime Minister António de Oliveira Salazar, who ordered its construction. After the Carnation Revolution, which overthrew the remnants of Salazar's regime, the bridge was renamed for April 25, the date of the revolution. It is also commonly called the Tagus River Bridge (in Portuguese: ''Ponte sobre o Tejo'' = "bridge over the Tagus"). Later changes had to be made due to the rapid increase in population. In the 1990s, a fifth car lane was added, and in 1999, a lower deck, used as a railway track, which was planned since the beginning, was finally built. Today, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mackinac Bridge
The Mackinac Bridge ( ) is a suspension bridge spanning the Straits of Mackinac, connecting the Upper and Lower peninsulas of the U.S. state of Michigan. Opened in 1957, the bridge (familiarly known as "Big Mac" and "Mighty Mac") is the world's 27th-longest main span and the longest suspension bridge between anchorages in the Western Hemisphere. The Mackinac Bridge is part of Interstate 75 (I-75) and the Lake Michigan and Huron components of the Great Lakes Circle Tour across the straits; it is also a segment of the U.S. North Country National Scenic Trail. The bridge connects the city of St. Ignace on the north end with the village of Mackinaw City on the south. Envisioned since the 1880s, the bridge was designed by the engineer David B. Steinman and completed in 1957 only after many decades of struggles to begin construction. Length The bridge opened on November 1, 1957, connecting two peninsulas linked for decades by ferries. At the time, the bridge was formally d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olivier-Charbonneau Bridge
The Olivier Charbonneau Bridge is a toll bridge over the Rivière des Prairies, between Laval's St. François district and Montreal's Rivière-des-Prairies–Pointe-aux-Trembles borough. Along with the Serge-Marcil Bridge, it is one of two toll bridges in Quebec. Toponymy Before May 2012, the bridge was called the A25 Bridge. It was then renamed to commemorate Olivier Charbonneau (1613-1687), French frontiersman and first inhabitant of Île Jésus, where the city of Laval now stands. History The Olivier Charbonneau Bridge was part of a -long project for the completion of Highway 25, and allows cars, trucks and buses to avoid the Pie IX Bridge upstream. It also provides a route around the city of Montreal by connecting Louis Hippolyte Lafontaine Tunnel to Highway 440, thus allowing motorists to avoid the congested Metropolitan Expressway. It is the second modern toll bridge built in Quebec and the first ever built in the Montreal Metropolitan Area since the abolition of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tacoma Narrows Bridge (1950)
The 1950 Tacoma Narrows Bridge is a suspension bridge in the U.S. state of Washington that carries the westbound lanes of Washington State Route 16 (known as Primary State Highway 14 until 1964) across the Tacoma Narrows strait, between the city of Tacoma and the Kitsap Peninsula. Opened on October 14, 1950, it was built in the same location as the original Tacoma Narrows Bridge, which collapsed due to a windstorm on November 7, 1940. It is the older of the twin bridges that make up the Tacoma Narrows Bridge crossing of the Tacoma Narrows, and carried both directions of traffic across the strait until 2007. At the time of its construction, the bridge was, like its predecessor, the third-longest suspension bridge in the world in terms of main span length, behind the Golden Gate Bridge and George Washington Bridge; it is now the 46th longest suspension bridge in the world. Design work on a new Tacoma Narrows Bridge began shortly after the collapse of the original bridge. How ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MRBM
A medium-range ballistic missile (MRBM) is a type of ballistic missile with medium range, this last classification depending on the standards of certain organizations. Within the U.S. Department of Defense, a medium-range missile is defined by having a maximum range of between . In modern terminology, MRBMs are part of the wider grouping of theatre ballistic missiles, which includes any ballistic missile with a range of less than . Specific MRBMs * DF-2 * DF-16 * DF-17 * DF-21 (China) , (Saudi Arabia) * SSBS S1 * Agni II * Agni-P * Ashoura * Emad * Fajr-3 (estimation) * Ghadr-110 * Khorramshahr (missile) * Sejjil * Shahab-3 * Badr-2000 * Jericho II * Hwasong-9 * Hwasong-10/RD-B Musudan * Pukkuksong-1 * Pukkuksong-2 * Pukkuksong-2 * Rodong-1 * Ababeel * Ghauri-I * Ghauri-II * Ghauri-III (Cancelled) * Shaheen-II * Shaheen-III [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MGM-31 Pershing
The MGM-31A Pershing was the missile used in the Pershing 1 and Pershing 1a field artillery missile systems. It was a solid-fueled two-stage theater ballistic missile designed and built by Martin Marietta to replace the PGM-11 Redstone missile as the primary nuclear-capable theater-level weapon of the United States Army and replaced the MGM-1 Matador cruise missiles operated by the German Air Force. Pershing later replaced the European-based MGM-13 Mace cruise missiles deployed by the United States Air Force and the German Air Force. Development began in 1958, with the first test missile fired in 1960, the Pershing 1 system deployed in 1963 and the improved Pershing 1a deployed in 1969. The U.S. Army replaced the Pershing 1a with the Pershing II Weapon System in 1983 while the German Air Force retained Pershing 1a until all Pershings were eliminated in 1991. The U.S. Army Missile Command (MICOM) managed the development and improvements while the Field Artillery Branch deployed the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ICBM
An intercontinental ballistic missile (ICBM) is a ballistic missile with a range greater than , primarily designed for nuclear weapons delivery (delivering one or more thermonuclear warheads). Conventional, chemical, and biological weapons can also be delivered with varying effectiveness, but have never been deployed on ICBMs. Most modern designs support multiple independently targetable reentry vehicles (MIRVs), allowing a single missile to carry several warheads, each of which can strike a different target. Russia, the United States, China, France, India, the United Kingdom, and North Korea are the only countries known to have operational ICBMs. Early ICBMs had limited precision, which made them suitable for use only against the largest targets, such as cities. They were seen as a "safe" basing option, one that would keep the deterrent force close to home where it would be difficult to attack. Attacks against military targets (especially hardened ones) still demanded th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LGM-30 Minuteman
The LGM-30 Minuteman is an American land-based intercontinental ballistic missile (ICBM) in service with the Air Force Global Strike Command. , the LGM-30G Minuteman III version is the only land-based ICBM in service in the United States and represents the land leg of the U.S. nuclear triad, along with the Trident submarine-launched ballistic missile (SLBM) and nuclear weapons carried by long-range strategic bombers. Development of the Minuteman began in the mid-1950s when basic research indicated that a solid-fuel rocket motor could stand ready to launch for long periods of time, in contrast to liquid-fueled rockets that required fueling before launch and so might be destroyed in a surprise attack. The missile was named for the colonial minutemen of the American Revolutionary War, who could be ready to fight on short notice. The Minuteman entered service in 1962 as a deterrence weapon that could hit Soviet cities with a second strike and countervalue counterattack if the U.S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Titan (rocket Family)
Titan was a family of United States expendable rockets used between 1959 and 2005. The Titan I and Titan II were part of the US Air Force's intercontinental ballistic missile (ICBM) fleet until 1987. The space launch vehicle versions contributed the majority of the 368 Titan launches, including all the Project Gemini crewed flights of the mid-1960s. Titan vehicles were also used to lift US military payloads as well as civilian agency reconnaissance satellites and to send interplanetary scientific probes throughout the Solar System. Titan I missile The HGM-25A Titan I, built by the Martin Company, was the first version of the Titan family of rockets. It began as a backup ICBM project in case the SM-65 Atlas was delayed. It was a two-stage rocket operational from early 1962 to mid-1965 whose LR-87 booster engine was powered by RP-1 (kerosene) and liquid oxygen (LOX). The ground guidance for the Titan was the UNIVAC ATHENA computer, designed by Seymour Cray, based in a harden ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leidos
Leidos, formerly known as Science Applications International Corporation (SAIC), is an American defense, aviation, information technology (Lockheed Martin IS&GS), and biomedical research company headquartered in Reston, Virginia, that provides scientific, engineering, systems integration, and technical services. Leidos merged with Lockheed Martin's IT sector, Information Systems & Global Solutions, in August 2016 to create the defense industry’s largest IT services provider. The Leidos-Lockheed Martin merger is one of the biggest transactions thus far in the consolidation of a defense sector. Leidos works extensively with the United States Department of Defense, the United States Department of Homeland Security, and the United States Intelligence Community, including the NSA, as well as other U.S. government civil agencies and selected commercial markets. History As SAIC The company was founded by J. Robert "Bob" Beyster in 1969 in the La Jolla neighborhood of San Diego, Cali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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