copper-lead bearing
111Molybdenum — niobium ← molybdenum → technetium Cr ↑ Mo ↓ W …
112Iran — /i ran , i rahn , uy ran /, n. a republic in SW Asia. 67,540,002; ab. 635,000 sq. mi. (1,644,650 sq. km). Cap.: Teheran. Formerly (until 1935), Persia. * * * Iran Introduction Iran Background: Known as Persia until 1935, Iran became an Islamic… …
113chemical element — Introduction also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed. This article considers the… …
114Silver — This article is about the chemical element. For the color, see Silver (color). For other uses, see Silver (disambiguation). palladium ← silver → cadmium …
115Statue of Liberty — For other uses, see Statue of Liberty (disambiguation). Statue of Liberty Locat …
116Electric motor — For other kinds of motors, see motor (disambiguation). For a railroad electric engine, see electric locomotive. Various electric motors. A 9 volt PP3 transistor battery is in the center foreground for size comparison. An electric motor converts… …
117Chemetco — Former type Private Industry Recycling Fate Bankruptcy Founded Illinois, United States June 9, 1969 (1969 06 09) …
118arctic — arctically, adv. /ahrk tik/ or, esp. for 7, /ahr tik/, adj. 1. (often cap.) of, pertaining to, or located at or near the North Pole: the arctic region. 2. coming from the North Pole or the arctic region: an arctic wind. 3. characteristic of the… …
119WRITING — (Scripts, Materials, and Inscriptions). SCRIPTS AND MATERIALS General Survey From the end of the third millennium B.C.E., the art of writing was practiced in the ancient Near East (see alphabet ). Here, the pictographic, cuneiform, and… …
120Ancient Egypt — was an ancient civilization in eastern North Africa, concentrated along the lower reaches of the Nile River in what is now the modern nation of Egypt. The civilization began around 3150 BC [Only after 664 BC are dates secure. See Egyptian… …
