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illumination, in physics

(Encyclopedia)illumination, in physics: see lighting; photometry. ...

age of consent

(Encyclopedia)age of consent, the age at which, according to the law, persons are bound by their words and acts. There are different ages at which one acquires legal capacity to consent to marriage, to choose a gua...

Reason, Age of

(Encyclopedia)Reason, Age of: see Enlightenment. ...

Adams, Maude

(Encyclopedia)Adams, Maude, 1872–1953, American actress, b. Salt Lake City, Utah. Her father's name was Kiskadden, but she used her mother's maiden name. She began acting at an early age and became leading lady t...

Tesla, Nikola

(Encyclopedia)Tesla, Nikola tĕsˈlə [key], 1856–1943, American electrician and inventor, b. Croatia (then an Austrian province). An ethnic Serb, he immigrated to the United States in 1884, worked for a short pe...

Appia, Adolphe

(Encyclopedia)Appia, Adolphe ädôlfˈ äpˈpyä [key], 1862–1928, Swiss theorist of modern stage lighting and décor. In interpreting Wagner's ideas in scenic designs for his operas, Appia rejected painted scene...

Bell, city, United States

(Encyclopedia)Bell, city (2020 pop. 35,339), Los Angeles co., S Calif.; inc. 1927. It is chiefly residential, with printing, metal fabrication, and the manufacture of...

Edmonds

(Encyclopedia)Edmonds, city (2020 pop. 42,853), Snohomish co., NW Wash., a residential suburb of Seattle, on Puget Sound; inc. 1890. There is boatbuilding and the man...

flint, mineral

(Encyclopedia)flint, variety of quartz that commonly occurs in rounded nodules and whose crystal structure is not visible to the naked eye. Flint is dark gray, smoky brown, or black in color; pale gray flint is cal...

Franklin Square

(Encyclopedia)Franklin Square, uninc. city (2020 pop. 32,055), Nassau co., SE N.Y., on Long Island. Although it is chiefly residential, there is significant manufactu...