Magnesium is a chemical element with the symbol Mg and atomic number 12. It is a shiny gray metal having a low density, low melting point and high chemical reactivity. Like the other alkaline earth metals it occurs naturally only in combination with other elements and it almost always has an oxidation state of +2. It reacts readily with air to form a thin passivation coating of magnesium oxide that inhibits further corrosion of the metal. The free metal burns with a brilliant-white light. The metal is obtained mainly by electrolysis of magnesium salts obtained from brine. It is less dense than aluminium and is used primarily as a component in strong and lightweight alloys that contain aluminium.
The Lockheed Corporation was an American aerospace manufacturer. Lockheed was founded in 1926 and merged in 1995 with Martin Marietta to form Lockheed Martin. Its founder, Allan Lockheed, had earlier founded the similarly named but otherwise-unrelated Loughead Aircraft Manufacturing Company, which was operational from 1912 to 1920.
The Lockheed Martin Corporation is an American aerospace, arms, defense, information security, and technology corporation with worldwide interests. It was formed by the merger of Lockheed Corporation with Martin Marietta in March 1995. It is headquartered in North Bethesda, Maryland, in the Washington, D.C. area. As of January 2022, Lockheed Martin employs approximately 115,000 employees worldwide, including about 60,000 engineers and scientists.
Magnesium oxide (MgO), or magnesia, is a white hygroscopic solid mineral that occurs naturally as periclase and is a source of magnesium (see also oxide). It has an empirical formula of MgO and consists of a lattice of Mg2+ ions and O2− ions held together by ionic bonding. Magnesium hydroxide forms in the presence of water (MgO + H2O → Mg(OH)2), but it can be reversed by heating it to remove moisture.
The Glenn L. Martin Company, also known as The Martin Company from 1917 to 1961, was an American aircraft and aerospace manufacturing company founded by aviation pioneer Glenn L. Martin, which operated from 1917 to 1961. The Martin Company produced many important aircraft for the defense of the US and allies, especially during World War II and the Cold War. During the 1950s and '60s, the Martin Company moved from the aircraft industry into the guided missile, space exploration, and space utilization industries.
Magnesium hydroxide is the inorganic compound with the chemical formula Mg(OH)2. It occurs in nature as the mineral brucite. It is a white solid with low solubility in water (Ksp = 5.61×10−12). Magnesium hydroxide is a common component of antacids, such as milk of magnesia.
Wright-Martin Aircraft Corporation was a short-lived aircraft manufacturing business venture between the Wright Company and Glenn L. Martin.
The Martin Marietta Corporation was an American company founded in 1961 through the merger of Glenn L. Martin Company and American-Marietta Corporation. In 1995, it merged with Lockheed Corporation to form Lockheed Martin.
In materials science, a refractory is a material that is resistant to decomposition by heat, pressure, or chemical attack, and retains strength and form at high temperatures. Refractories are polycrystalline, polyphase, inorganic, non-metallic, porous, and heterogeneous. They are typically composed of oxides or carbides, nitrides etc. of the following elements: silicon, aluminium, magnesium, calcium, boron, chromium and zirconium.
Sanders Associates was a defense contractor in Nashua, New Hampshire, United States, from 1951 until it was sold in 1986. It is now part of BAE Systems Electronics & Integrated Solutions, a subsidiary of BAE Systems. It concentrated on developing and manufacturing electronic systems, notably aircraft self-protection systems, and tactical surveillance and intelligence systems. Other business areas included microwave, missile and space electronics; infrared imaging; and automated mission planning systems, with both military and commercial applications.
Glenn Luther Martin was an early American aviation pioneer. He designed and built his own aircraft and was an active pilot, as well as an aviation record-holder. He founded an aircraft company in 1912 which through several mergers amalgamated into what is today known as Lockheed Martin.
The Alamo Gulf Coast Railroad is a short-line railroad headquartered in San Antonio, Texas. It is a subsidiary of Martin Marietta Materials, a spinoff of Lockheed Martin., and began operation in 1996.
FuelPositive Corporation is a company based in Cedar Park, Texas, United States that claims to have developed a solid state polymer capacitor for electricity storage. The company claims the device stores more energy than lithium-ion batteries at a lower cost than lead-acid batteries used in gasoline-powered cars. Such a device would revolutionize the electric car industry. Many experts believe these claims are not realistic and EEStor has yet to publicly demonstrate these claims. The corporate slogan is "Energy Everywhere".
Elementis plc is one of the UK's largest speciality chemicals and personal care businesses, with extensive operations in the United States, Europe and Asia. It is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index.
PRICE Systems was founded in 1975 as a business within the RCA Corporation. It is generally acknowledged as the earliest developer of parametric cost estimation software.
Lockheed Missiles and Space Company (LMSC) was a unit of the Lockheed Corporation "Missiles, Space, and Electronics Systems Group." LMSC was started by Willis Hawkins who served as its president. After Lockheed merged with Martin-Marietta the unit became known as "Lockheed Martin Missiles and Space". Located in Sunnyvale, California adjacent to Moffett Field, it operated a major satellite development and manufacturing plant.
GE Aerospace was a business group of General Electric.
TXI, formerly Texas Industries, was a manufacturing company. The company was focused on the production of heavy construction materials in the southwestern United States market.
WTI Transport, Inc. is a for-hire carrier based in Tuscaloosa, Alabama with terminals in Birmingham, Mobile and Whites Creek, TN. A flatbed company of approximately 370 tractors, WTI hauls freight throughout the Southeast, Midwest, Southwest, and East Coast. WTI’s fleet is a mixture of company drivers and owner-operators. Shipments consist mainly of roofing, building materials, and all types of aluminum, iron and steel products. Currently, WTI is a subsidiary of Daseke
The American-Marietta Corporation was an American industrial conglomerate based in Chicago, Illinois, with numerous subsidiary companies across the Continental United States. It specialized in construction materials and industrial chemicals such as synthetic resins, adhesives, paints, and varnishes and was a former constituent of the Fortune 500.
US$4.7 billion (2020) [1] 
