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Hoover Institution on War, Revolution, and Peace

(Encyclopedia)Hoover Institution on War, Revolution, and Peace, at Stanford, Calif. It was established in 1919 as the Hoover War Library by Herbert Hoover to extend his collection of documents of World War I, but i...

Denmark Strait

(Encyclopedia)Denmark Strait, passage, c.300 mi (480 km) long and 180 mi (290 km) wide at the narrowest point, between Greenland and Iceland. The cold E Greenland current passes through the strait and carries icebe...

low-temperature fusion

(Encyclopedia)low-temperature fusion: see cold fusion. ...

dark matter

(Encyclopedia)dark matter, material that is believed to make up nearly 27% of the mass of the universe but is not readily visible because it neither emits nor reflects electromagnetic radiation, such as light or ra...

Rosie the Riveter World War II Home Front National Historical Park

(Encyclopedia)Rosie the Riveter World War II Home Front National Historical Park: see National Parks and Monuments (table)national parks and monuments (table). ...

hydrogen peroxide

(Encyclopedia)hydrogen peroxide, chemical compound, H2O2, a colorless, syrupy liquid that is a strong oxidizing agent and, in water solution, a weak acid. It is miscible with cold water and is soluble in alcohol an...

Amnesty International

(Encyclopedia)Amnesty International (AI,) human-rights organization founded in 1961 by Englishman Peter Benenson; it campaigns internationally against the detention of prisoners of conscience, for the fair trial of...

El Niño–Southern Oscillation

(Encyclopedia)El Niño–Southern Oscillation (ENSO) ĕl nēnˈyō [key], large-scale climatic fluctuation of the tropical Pacific Ocean and the overlying atmosphere. The El Niño [Span.,=the child] is the South Am...

Grand Banks

(Encyclopedia)Grand Banks, submarine plateau rising from the continental shelf, c.36,000 sq mi (93,200 sq km), off SE Newfoundland, N.L., Canada. It is c.300 mi (480 km) long and c.400 mi (640 km) wide; depths rang...

vulcanization

(Encyclopedia)vulcanization vŭlˌkənəzāˈshən [key], treatment of rubber to give it certain qualities, e.g., strength, elasticity, and resistance to solvents, and to render it impervious to moderate heat and c...