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polybrominated biphenyl

(Encyclopedia) polybrominated biphenyl or PBB, any of a group of organic compounds used as a fire retardant. In 1973 several thousand pounds of PBB were accidentally mixed with livestock feed that…

Michigan Map

Michigan Profile More Geographic Information Country Profiles Flags World Geography World Statistics U.S. State Profiles U.S. Cities U.S. Geography U.S. Statistics U.S. Map Map…

Leahy, Frank William

(Encyclopedia) Leahy, Frank WilliamLeahy, Frank Williamlāˈhē [key], 1908–73, American football coach, b. O'Neill, Nebr. He was an assistant coach at Georgetown Univ. (1931–32), Michigan State College…

Tyler, Moses Coit

(Encyclopedia) Tyler, Moses Coit, 1835–1900, American writer on intellectual history, b. Griswold, Conn. He moved to Michigan as a boy. Graduated from Yale (1857) and from Andover Theological…

Calumet Harbor

(Encyclopedia) Calumet Harbor, artificial harbor on Lake Michigan, at the mouth of the Calumet River, NE Ill., in S Chicago. The harbor, dredged to 27 ft (8 m), is formed behind a breakwater…

Great Lakes, North America

(Encyclopedia) Great Lakes, group of five freshwater lakes, central North America, creating a natural border between the United States and Canada and forming the largest body of freshwater in the…

froghopper

(Encyclopedia) froghopper or spittlebug, small, hopping insect of the order Homoptera. The adult, under 1&fslsh;2 in. (1.2 cm) long in most species, is triangular in shape and usually gray or…

Gurdon, Sir John Bertrand

(Encyclopedia) Gurdon, Sir John Bertrand, 1933–, British biologist, Ph.D. Oxford, 1962. He has been a researcher at Cambridge since 1971. Gurdon was the joint recipient of the 2012 Nobel Prize in…

swimming

(Encyclopedia) swimming, self-propulsion through water, often as a form of recreation or exercise or as a competitive sport. It is mentioned in many of the classics in connection with heroic acts or…

Whitefish Bay

(Encyclopedia) Whitefish Bay, village (1990 pop. 14,272), Milwaukee co., SE Wis., a residential suburb of Milwaukee on Lake Michigan; inc. 1892. Tourists are attracted to recreation provided by the…