Copper is a chemical element with the symbol Cu (from cuprum) and atomic number 29. It is a ductile metal with very high thermal and electrical conductivity. Pure copper is soft and malleable; a freshly exposed surface has a reddish-orange color. It is used as a conductor of heat and electricity, a building material, and a constituent of various metal .
Zinc, in commerce also spelter, is a chemical element; it has the symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. Zinc is, in some respects, chemically similar to magnesium, because its ion is of similar size and its only common oxidation state is 2. Zinc is the 24th most abundant element in the Earth's crust and has five stable . The most common zinc ore is sphalerite (zinc blende), a zinc sulfide mineral. The largest mineable amounts are found in Australia, A..
Jeffrey L. "Jeff" Smith (January 22, 1939 – July 7, 2004) was the author of several best-selling cookbooks and the host of The Frugal Gourmet, a popular American cooking show which began in Tacoma, Washington in 1973 as Cooking Fish Creatively and later moved to WTTW in Chicago, and Natan Katzman's A La Carte Communications, where it aired nationally on PBS from 1983 to 1997.
