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international date line

(Encyclopedia)international date line, imaginary line on the earth's surface, generally following the 180° meridian of longitude, where, by international agreement, travelers change dates. Traveling eastward acros...

second

(Encyclopedia)second, abbr. sec or s, fundamental unit of time in all systems of measurement. In practical terms, the second is 1/60 of a minute, 1/3,600 of an hour, or 1/86,400 of a day. Since the length of the da...

Janus, in Roman religion

(Encyclopedia)Janus jāˈnəs [key], in Roman religion, god of beginnings. He was one of the principal Roman gods, the custodian of the universe. The first hour of the day, the first day of the month, the first mon...

French Revolutionary calendar

(Encyclopedia)French Revolutionary calendar, the official calendar of France, Nov. 24, 1793–Dec. 31, 1805. Its introduction was decreed by the Convention on Oct. 5, 1793, but it was computed from Sept. 22, 1792, ...

Frigg

(Encyclopedia)Frigg or Frigga, Norse mother goddess and the wife of Odin (Woden). One of the most important goddesses of Germanic religion, she was queen of the heavens, a deity of love and the household. She was o...

Keith, William

(Encyclopedia)Keith, William, 1838–1911, American painter, b. Scotland. In 1851 he came to New York City, where he learned wood engraving and did illustrations for Harper's Weekly. He moved to San Francisco in 18...

McFadden, Daniel Little

(Encyclopedia)McFadden, Daniel Little, 1937–, American economist, b. Raleigh, N.C., Ph.D. Univ. of Minnesota, 1962. McFadden has taught at the Univ. of California, Berkeley (1963–79, 1990–) and the Massachuse...

Kitty Hawk

(Encyclopedia)Kitty Hawk or Kittyhawk, part of an offshore sandbar on Cape Hatteras, NE N.C., E of Albemarle Sound. Nearby is Kill Devil Hill, where the Wright brothers experimented successfully (1900–1903) with ...

Mundell, Robert A.

(Encyclopedia)Mundell, Robert A., 1932–2021, Canadian economist, b. Kingston, Ont., Massachusetts Institute of Technology (Ph.D. , 1956). He taught at a number of u...

Heckman, James Joseph

(Encyclopedia)Heckman, James Joseph, 1944– American economist, b. Chicago, Ill., Ph.D. Princeton, 1971. He has taught at the Univ. of Chicago since 1973. Heckman shared the Nobel Memorial Prize in Economic Scienc...