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photochemistry

(Encyclopedia)photochemistry, study of chemical processes that are accompanied by or catalyzed by the emission or absorption of visible light or ultraviolet radiation. A molecule in its ground (unexcited) state can...

Price, Vincent Leonard, Jr.

(Encyclopedia) Price, Vincent Leonard, Jr., 1911-93, American film actor, b. St. Louis, Mo., Yale Univ. (B.A., 1933). Price studied English and art in college and th...

capacitor

(Encyclopedia)capacitor or condenser, device for the storage of electric charge. Simple capacitors consist of two plates made of an electrically conducting material (e.g., a metal) and separated by a nonconducting ...

Poroshenko, Petro Oleksiyovych

(Encyclopedia)Poroshenko, Petro Oleksiyovych pĕtrôˈ ôlĕksēˈyôvĭch pôrôshĕnˈkô [key], 1965–, Ukrainian political leader and businessman. He studied economics at Kiev State Univ. (grad. 1989) and went...

Dahl, Roald

(Encyclopedia)Dahl, Roald däl [key], 1916–90, British writer known for inventive, often macabre children's books and horror-tinged adult fiction. Dahl spurned a university education in favor of world travel, jo...

anti–Vietnam War movement

(Encyclopedia)anti–Vietnam War movement, domestic and international reaction (1965–73) in opposition to U.S. policy during the Vietnam War. During the four years following passage of the Tonkin Gulf resolution ...

Jones, Quincy

(Encyclopedia)Jones, Quincy (Quincy Delight Jones, Jr.), 1933–, African-American musician, composer, bandleader, and music executive, b. Chicago. Jones played trumpet and sang gospel growing up, and studied brief...

Lanzmann, Claude

(Encyclopedia)Lanzmann, Claude, 1925–2018, French filmmaker and journalist, b. Paris. While his Jewish family was in hiding in rural France during World War II, Lanzmann joined the Resistance and fought the Nazis...

le Carré, John

(Encyclopedia)le Carré, John lə kärāˈ [key], pseud. of David John Moore Cornwell, 1931–2020, English novelist. He was a tutor at Eton College (1956–58), and subsequently worked for the British foreign serv...

Kiarostami, Abbas

(Encyclopedia)Kiarostami, Abbas ăbôˈsā kēyôˈrōmămēˌ [key], 1940–2016, Iranian filmmaker. Widely acclaimed as Iran's greatest film director, he typically explores the lives of ordinary Iranians in his f...