(Encyclopedia) power, in physics, time rate of doing work or of producing or expending energy. The unit of power based on the English units of measurement is the horsepower, devised for describing…
(Encyclopedia) Sabbath [Heb.,=repose], in Judaism, last day of the week (Saturday), observed as a rest day for the twenty-five hours commencing with sundown on Friday. In the biblical account of…
(Encyclopedia) Blücher, Gebhard Leberecht vonBlücher, Gebhard Leberecht vongĕpˈhärt lāˈbərĕkht fən blüˈkhər [key], 1742–1819, Prussian field marshal, an outstanding military opponent of Napoleon I.…
(Encyclopedia) roentgenium, artificially produced radioactive chemical element; symbol Rg; at. no. 111; mass number of most stable isotope 280; m.p., b.p., sp. gr., and valence unknown. Situated in…
Who originated the idea of a national holiday in honor of MLK?
by Shmuel Ross and David Johnson Martin Luther King Day is a federal holiday observed on the third Monday in January.…
The annual U.S. News & World Report list of the United States' best hospitals is prepared by the National Opinion Research Center at the University of…
founder of ChicagoBorn: c. 1750Birthplace: St. Marc, Saint-Domingue (present-day Haiti) Du Sable had a French father and an African-born slave mother. He was educated (possibly in France) and may…
ATKINSON, Richard Merrill, a Representative from Tennessee; born in Nashville, Davidson County, Tenn., February 6, 1894; attended the public schools; was graduated from Wallace University…
