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W and Z particles

(Encyclopedia) W and Z particles, elementary particles that mediate, or carry, the fundamental force associated with weak interactions. The discovery of the W and Z particles at CERN near Geneva,…

model and modeling

(Encyclopedia) model and modeling, in painting, the use of light and shade to simulate volume in the representation of solids. In sculpture the terms denote a technique involving the use of a pliable…

Motherwell and Wishaw

(Encyclopedia) Motherwell and WishawMotherwell and Wishawwĭshˈô [key], town (1991 pop. 30,616), North Lanarkshire, S central Scotland. The two parts of the town were united in 1920. Formerly a center…

Morecambe and Heysham

(Encyclopedia) Morecambe and HeyshamMorecambe and Heyshammôrˈkəm, hēˈshəm, hēˈsəm [key], town (1991 pop. 41,432), Lancashire, NW England, on Morecambe Bay. Morecambe, a seaside resort, and Heysham, a…

Monitor and Merrimack

(Encyclopedia) Monitor and Merrimack, two American warships that fought the first engagement between ironclad ships. When, at the beginning of the Civil War, the Union forces abandoned the Norfolk…

Montagnais and Naskapi

(Encyclopedia) MontagnaisMontagnaismŏntənyāˈ [key] and NaskapiNaskapinăsˈkəpē [key], aboriginal peoples originally from Labrador, Canada. Because they both spoke almost identical Algonquian languages…

Masters and Johnson

(Encyclopedia) Masters and Johnson, pioneering research team in the field of human sexuality, consisting of the gynecologist William Howell Masters, 1915–2001, b. Cleveland, and the psychologist…

Hengist and Horsa

(Encyclopedia) Hengist and HorsaHengist and Horsahĕngˈgĭst, hôrˈsə [key], names of two brothers who, according to tradition, led the Jutish invasion of Britain and founded the kingdom of Kent.…

Illyria and Illyricum

(Encyclopedia) IllyriaIllyriaĭlĭrˈēə [key] and IllyricumIllyricumĭlĭrˈĭkəm [key], ancient region of the Balkan Peninsula. In prehistoric times a group of tribes speaking dialects of an Indo-European…