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Lodge, Sir Oliver Joseph

(Encyclopedia)Lodge, Sir Oliver Joseph, 1851–1940, English physicist, grad. University College, London (B.S., 1875; D.Sc., 1877). He made valuable contributions to the development of wireless telegraphy and condu...

Man o' War

(Encyclopedia)Man o' War, 1917–47, American racehorse, by Fair Play out of Mahubah, bred by August Belmont near Lexington, Ky., and owned by Samuel D. Riddle after 1918. A large reddish-colored colt capable of tr...

Van de Graaff, Robert Jemison

(Encyclopedia)Van de Graaff, Robert Jemison văn də gräf [key], 1901–67, American physicist, b. Tuscaloosa, Ala., grad. Univ. of Alabama (B.S., 1922), Ph.D. Oxford, 1928. He was research associate at Massachuse...

Lucifer

(Encyclopedia)Lucifer lo͞oˈsĭfər [key] [Lat.,=light-bearing], in Christian tradition a name for Satan. In the Vulgate, Lucifer served as a translation of the Hebrew epithet meaning “Day Star,” a name associ...

Leyden jar

(Encyclopedia)Leyden jar līˈdən [key], form of capacitor invented at the Univ. of Leiden in the 18th cent. It consists of a narrow-necked glass jar coated over part of its inner and outer surfaces with conductiv...

act of God

(Encyclopedia)act of God, in law, an accident caused by the operation of extraordinary natural force. The effect of ordinary natural causes (e.g., that rain will leak through a defective roof) may be foreseen and a...

Pomo

(Encyclopedia)Pomo, Native Americans of N California, belonging to the Hokan branch of the Hokan-Siouan linguistic stock (see Native American languages). The Pomo were the most southerly Native Americans on the Cal...

night blindness

(Encyclopedia)night blindness, inability to see normally in subdued light. It is usually a result of vitamin A deficiency. The rod cells, one of two light-sensitive areas of the retina of the eye, are impaired in t...

McKay, Donald

(Encyclopedia)McKay, Donald məkāˈ, məkīˈ [key], 1810–80, American shipbuilder, b. Nova Scotia. He opened his own shipyard in Newburyport, Mass., in 1841, then moved to Boston in 1845. He grew celebrated as ...

Van Halen, Eddie

(Encyclopedia)Van Halen, Eddie (Edward Lodewijk Van Halen), 1955–2020, American rock musician and song writer, b. Amsterdam, Netherlands; his family moved to California when he was young. He and brother Alex form...