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Aholah and Aholibah

(Encyclopedia)Aholah əhōˈlə [key], in the Bible, the sisters in an allegory on Israel's idolatry. ...

ratchet and pawl

(Encyclopedia)ratchet and pawl, mechanical device that permits motion in one direction only. The ratchet is usually a wheel with slanting teeth. The pawl is a lever tangential to the wheel with one end resting on t...

Morecambe and Heysham

(Encyclopedia)Morecambe and Heysham môrˈkəm, hēˈshəm, hēˈsəm [key], town (1991 pop. 41,432), Lancashire, NW England, on Morecambe Bay. Morecambe, a seaside resort, and Heysham, a port with service to Belfa...

relay

(Encyclopedia)relay, electromechanical switch operated by a flow of electricity in one circuit and controlling the flow of electricity in another circuit. A relay consists basically of an electromagnet with a soft ...

Woods, Granville Taylor

(Encyclopedia)Woods, Granville Taylor,, 1856–1910, African-American inventor, b. Columbus, Ohio. He worked in a railroad shop as a youth, becoming a machinist and blacksmith. He subsequently worked on trains, fir...

Jannes and Jambres

(Encyclopedia)Jannes and Jambres jănˈēz, jămˈbrēz [key], in the Bible, opponents of Moses. Tradition gave these names to Pharaoh's magicians. One of the Pseudepigrapha bears their name. ...

population I and II

(Encyclopedia)population I and II, in astronomy: see stellar populations. ...

Esher and Molesey

(Encyclopedia)Esher and Molesey ēˈshər, mōlˈzē [key], town, Surrey, SE England. It is largely a residential suburb of ...

galvanometer

(Encyclopedia)CE5 Galvanometer galvanometer gălˌvənŏmˈətər [key], instrument used to determine the presence, direction, and strength of an electric current in a conductor. All galvanometers are based upo...

abacus, in architecture

(Encyclopedia)abacus ăbˈəkəs [key], in architecture, flat slab forming the top member of a capital. In classical orders it varies from a square form having unmolded sides in the Greek Doric, to thinner proporti...