half-rate mirror
51Canada — /kan euh deuh/, n. a nation in N North America: a member of the Commonwealth of Nations. 29,123,194; 3,690,410 sq. mi. (9,558,160 sq. km). Cap.: Ottawa. * * * Canada Introduction Canada Background: A land of vast distances and rich natural… …
52Norway — /nawr way/, n. Norwegian, Norge. a kingdom in N Europe, in the W part of the Scandinavian Peninsula. 4,404,456; 124,555 sq. mi. (322,597 sq. km). Cap.: Oslo. * * * Norway Introduction Norway Background: Despite its neutrality, Norway was not able …
53motion picture, history of the — Introduction history of the medium from the 19th century to the present. Early years, 1830–1910 Origins The illusion of motion pictures is based on the optical phenomena known as persistence of vision and the phi phenomenon. The first …
54Comparison of the health care systems in Canada and the United States — Health spending per capita, in U.S. dollars PPP adjusted, with the U.S. and Canada compared amongst other first world nations. Comparison of the health care systems in Canada and the United States are often made by government, public health and… …
55Operational amplifier — A Signetics μa741 operational amplifier, one of the most successful op amps. An operational amplifier ( op amp ) is a DC coupled high gain electronic voltage amplifier with a differential input and, usually, a single ended output.[1] An op amp… …
56Switzerland — /swit seuhr leuhnd/, n. a republic in central Europe. 7,248,984; 15,944 sq. mi. (41,294 sq. km). Cap.: Bern. French, Suisse. German, Schweiz. Italian, Svizzera. Latin, Helvetia. * * * Switzerland Introduction Switzerland Background: Switzerland s …
57Ukraine — /yooh krayn , kruyn , yooh krayn/, n. a republic in SE Europe: rich agricultural and industrial region. 50,684,635; 223,090 sq. mi. (603,700 sq. km). Cap.: Kiev. Russian, Ukraina. Formerly, Ukrainian Soviet Socialist Republic. * * * Ukraine… …
58Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …
59Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… …
60Auschwitz concentration camp — Auschwitz and Auschwitz Birkenau redirect here. For the town, see Oświęcim. Distinguish from Austerlitz. Or see Auschwitz (disambiguation) Auschwitz Concentration camp …
