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tetraethyl lead

(Encyclopedia) tetraethyl leadtetraethyl leadtĕtˌrəĕthˈəl [key], (C2H5)4Pb, viscous, colorless, poisonous liquid. It is an organometallic compound prepared by reacting ethyl chloride with a sodium-…

Wolff, Christian von

(Encyclopedia) Wolff or Wolf, Christian vonWolff or Wolf, Christian vonkrĭsˈtyän fən vôlf [key], 1679–1754, German philosopher. One of the first to use the German language instead of Latin, he…

Firefighter

What is this job like? Every year, fires take many lives and destroy billions of dollars worth of property. Firefighters help protect people and property. They are often the first at an accident or…

User's Guide to Environmental Language

acid rain: Rain contaminated with pollutants such as sulfur dioxide and nitrogen oxide. These gases come from fuels being burned at high temperatures and from car exhausts. When acid rain falls, it…

DK Science & Technology: Engines

WHAT IS A HEAT ENGINE? WHAT IS AN INTERNAL COMBUSTION ENGINE? HOW DOES A STEAM ENGINE WORK? HOW DOES A JET ENGINE WORK? GASOLINE ENGINEBIOGRAPHY: FRANK WHITTLE English, 1907-1996 TURBINESFUEL…

War of 1812

War of 1812 British interference with American trade, impressment of American seamen, and “War Hawks” drive for western expansion lead to war. American attacks on Canada foiled; U.S. Commodore…

Luke Wilson

actorBorn: 9/21/1971Birthplace: Dallas, Texas When brothers Owen and Luke Wilson left their Dallas childhood home for the University of Texas, they had no idea they were on the way to thriving…

Owen Wilson

actor, screenwriterBorn: 11/18/1968Birthplace: Dallas, Texas When brothers Owen and Luke Wilson left their Dallas childhood home for the University of Texas, they had no idea they were on the way…

Natalie Wood

(Natasha Nikolaevna Gurdin)actressBorn: 7/20/1938Birthplace: San Francisco, California Dark-haired, browned eyed smoldering beauty who began acting at age four in the 1943 movie, Happy Land. Wood…

Dean Cain

actorBorn: 7/31/1966Birthplace: Mt. Clemens, Michigan Actor who played Superman/Clark Kent in the popular TV series Lois & Clark: The Adventures of Superman (1993–97). Though his adoptive…