downward transition
51Great Depression — This article is about the severe worldwide economic downturn in the 1930s. For other uses, see The Great Depression (disambiguation) …
52UNITED STATES OF AMERICA — UNITED STATES OF AMERICA, country in N. America. This article is arranged according to the following outline: introduction Colonial Era, 1654–1776 Early National Period, 1776–1820 German Jewish Period, 1820–1880 East European Jewish Period,… …
53mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… …
54Wingtip device — Infobox Aviation name = Wingtip devices caption = The winglet and red navigation light on the port (left) wing of a South African Airways Boeing 747 400Wingtip devices are usually intended to improve the efficiency of fixed wing aircraft.… …
55Professional wrestling attacks — Attacking maneuvers are offensive moves in professional wrestling, used to set up an opponent for a submission hold or for a throw. There are a wide variety of attacking moves in pro wrestling, and many moves are known by several different names …
56angiosperm — /an jee euh sperrm /, n. Bot. a plant having its seeds enclosed in an ovary; a flowering plant. Cf. gymnosperm. [ANGIO + SPERM] * * * ▪ plant Introduction any member of the more than 300,000 species of flowering plants (division Anthophyta) …
57Asia — /ay zheuh, ay sheuh/, n. a continent bounded by Europe and the Arctic, Pacific, and Indian oceans. 2,896,700,000; ab. 16,000,000 sq. mi. (41,440,000 sq. km). * * * I Largest continent on Earth. It is bounded by the Arctic Ocean, the Pacific Ocean …
58impact crater — Astron., Geol. crater (def. 2). [1890 95] * * * ▪ landform Introduction any feature on the continents that has been created by the impact of cosmic bodies (meteorites, asteroids (asteroid), or comets (comet)) on the Earth s surface. In fact …
59arts, East Asian — Introduction music and visual and performing arts of China, Korea, and Japan. The literatures of these countries are covered in the articles Chinese literature, Korean literature, and Japanese literature. Some studies of East Asia… …
60Western architecture — Introduction history of Western architecture from prehistoric Mediterranean cultures to the present. The history of Western architecture is marked by a series of new solutions to structural problems. During the period from the… …
