(Encyclopedia)
CE5
Image formation by curved mirrors and lenses
reflection, return of a wave from a surface that it strikes into the medium through which it has traveled. The general principles…
(Encyclopedia) Bragg, Sir William Henry, 1862–1942, English physicist, educated at King William's College, Isle of Man, and Trinity College, Cambridge. He served on the faculties of the Univ. of…
(Encyclopedia) Nicol prismNicol prismnĭkˈəl [key], optical device invented (1828) by William Nicol of Edinburgh. It consists essentially of a crystal of calcite, or Iceland spar, that is cut at an…
U2Tracey UllmanLiv UllmannSkeet UlrichAmber VallettaAbigail Van BurenLee Van CleefJean-Claude Van DammeJames Van Der BeekAmy VanderbiltLuther VandrossMona Van DuynDick Van DykeVan HalenMelvin Van…
(Encyclopedia) Terfel, Bryn, 1965–, Welsh bass-baritone, b. Pant Glas as Bryn Terfel Jones. One of the most acclaimed singers of his era, he has a voice of rare warmth, richness, and power. His rise…
(Encyclopedia) Orbiting Solar Observatory (OSO), series of eight orbiting observatories (see observatory, orbiting) launched between 1962 and 1971 by the National Aeronautics and Space Administration…
(Encyclopedia) metaphysical poets, name given to a group of English lyric poets of the 17th cent. The term was first used by Samuel Johnson (1744). The hallmark of their poetry is the metaphysical…
ELECTROMAGNETIC WAVESCOMPTON GAMMA RAY OBSERVATORYCHANDRA X-RAY OBSERVATORYSOHO’S SUNWATCHSPITZER OBSERVATORYHUBBLE SPACE TELESCOPEFIND OUT MOREHigh above the Earth’s atmosphere, space…
Notable African-American Musicians
The following list includes African-American singers, composers, rappers, pianists, and other musicians who have contributed to the world of music,…
Texas State Facts
Entered Union: Dec. 29, 1845 (28th State)Organized as republic: 1836Present constitution adopted: 1876
Fun Facts
State abbreviation/Postal code: Tex./TXNickname: The Lone Star…
