copper sand
101Pacific Ocean — an ocean bordered by the American continents, Asia, and Australia: largest ocean in the world; divided by the equator into the North Pacific and the South Pacific. 70,000,000 sq. mi. (181,300,000 sq. km); greatest known depth, 35,433 ft. (10,800… …
102nitrogen group element — ▪ chemical elements Introduction any of the chemical elements that constitute Group Va of the periodic table (see Figure >). The group consists of nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi). The elements share… …
103HUMAN GEOGRAPHY — In respect of human as well as of physical geography, it is convenient to divide the Land of Israel into four major units: 1. the Mediterranean Coastal Plain 2. the hill regions of northern and central Cisjordan (west of the Jordan) 3. the Rift… …
104Metallurgy — Georg Agricola, author of De re metallica, an important early book on metal extraction Metallurgy is a domain of materials science that studies the physical and chemical behavior of metallic elements, their intermetallic compounds, and their… …
105Continuous casting — The macrostructure of continuously cast copper (99.95% pure), etched, ∅ ≈ 83 mm. Continuous casting, also called strand casting, is the process whereby molten metal is solidified into a semifinished billet, bloom, or slab for subsequent rolling… …
106Inventions in medieval Islam — A significant number of inventions were developed in the medieval Islamic world, a geopolitical region that has at various times extended from Al Andalus and Africa in the west to the Indian subcontinent and Malay Archipelago in the east.… …
107List of the mosses of Britain and Ireland — This is a list of the mosses of Britain and Ireland:* Abietinella abietina Fir Tamarisk moss * Acaulon muticum Rounded Pygmy moss * Acaulon triquetrum Triangular Pygmy moss * Aloina aloides Common Aloe moss * Aloina ambigua Tall Aloe moss *… …
108japan — japanner, n. /jeuh pan /, n., adj., v., japanned, japanning. n. 1. any of various hard, durable, black varnishes, originally from Japan, for coating wood, metal, or other surfaces. 2. work varnished and figured in the Japanese manner. 3. Japans,… …
109Japan — /jeuh pan /, n. 1. a constitutional monarchy on a chain of islands off the E coast of Asia: main islands, Hokkaido, Honshu, Kyushu, and Shikoku. 125,716,637; 141,529 sq. mi. (366,560 sq. km). Cap.: Tokyo. Japanese, Nihon, Nippon. 2. Sea of, the… …
110Mauritania — Mauritanian, adj., n. /mawr i tay nee euh/, n. 1. Official name, Islamic Republic of Mauritania. a republic in W Africa, largely in the Sahara Desert: formerly a French colony; a member of the French Community 1958 66; independent 1960.… …
