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Croghan, George, 1791–1849, American military officer

(Encyclopedia)Croghan, George, 1791–1849, American military officer, b. near Louisville, Ky.; nephew of George Rogers Clark and William Clark. He won public acclaim and a congressional award for his defense of Fo...

Patton, George Smith, Jr.

(Encyclopedia)Patton, George Smith, Jr., 1885–1945, American general, b. San Gabriel, Calif. A graduate of West Point (1909), he served in World War I and was wounded while commanding a tank brigade in France. Su...

leaching

(Encyclopedia)leaching, method of extraction in which a solvent is passed through a mixture to remove some desired substance from it. A simple example is the passage of boiling water through ground coffee to dissol...

Abrams, Creighton Williams

(Encyclopedia)Abrams, Creighton Williams āˈbrəmz [key], 1914–74, U.S. military officer, b. Springfield, Mass. After graduating (1936) from West Point, he served with distinction during World War II, most notab...

Bayer process

(Encyclopedia)Bayer process, procedure for obtaining alumina from the aluminum ore bauxite. The alumina can then be used for various industrial purposes or smelted to provide aluminum. The first step in the process...

Mason, John, c.1600–1672, American colonial military commander

(Encyclopedia)Mason, John, c.1600–1672, American colonial military commander, b. England. He was an army officer before emigrating (c.1630) to Massachusetts and then (1635) to Windsor, Conn. When the Pequot threa...

armor

(Encyclopedia)armor, apparatus for defense of persons, horses, and such objects as vehicles, naval vessels, and aircraft. Body armor developed early as protective suits made of such materials as leather, shells, wo...

resuscitator

(Encyclopedia)resuscitator rĭsŭsˈĭtāˌtər [key], device used to revive a person whose normal breathing has been disrupted. Several types are in wide use. The automatic tank resuscitator consists of a face mas...

cesspool

(Encyclopedia)cesspool: see septic tank.

mechanized warfare

(Encyclopedia)mechanized warfare, employment of modern mobile attack and defense tactics that depend upon machines, more particularly upon vehicles powered by gasoline and diesel engines. Central to the waging of m...