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Kennebunk

(Encyclopedia)Kennebunk kĕnəbŭngkˈ [key], town (1990 pop. 8,004), York co., S Maine, adjacent to Kennebunkport; inc. 1820. The first settlement (c.1650) grew as a trading and, later, a shipbuilding and shipping...

Livermore

(Encyclopedia)Livermore, city (1990 pop. 56,741), Alameda co., W central Calif.; inc. 1876. Nursery stock is grown, and there is light manufacturing, but the major sources of employment are wineries and the Lawrenc...

Sylvania

(Encyclopedia)Sylvania sĭlvānˈyə [key], city (1990 pop. 17,301), Lucas co., NW Ohio, a suburb of Toledo at the Mich. line; inc. 1867. It is chiefly residential, with light manufacturing. ...

Timaru

(Encyclopedia)Timaru tĭmˈəro͞o [key], city (1996 pop. 27,323), E central South Island, New Zealand, on the Pacific Ocean. It is the main port for the S Canterbury Plains. Frozen meats and other products are exp...

San Isidro

(Encyclopedia)San Isidro sän ēsēˈᵺrō [key], city (1991 pop. 299,022), Buenos Aires prov., E Argentina. It is a district administrative center in the Greater Buenos Aires area. San Isidro grew around a chapel...

corona, in astronomy

(Encyclopedia)corona, luminous envelope surrounding the sun, outside the chromosphere. Its density is less than one billionth that of the earth's atmosphere. The corona is visible only at the time of totality durin...

noise

(Encyclopedia)noise, any signal that does not convey useful information. Electrical noise consists of electrical currents or voltages that interfere with the operation of electronic systems. Electrical noise limits...

relativity

(Encyclopedia)relativity, physical theory, introduced by Albert Einstein, that discards the concept of absolute motion and instead treats only relative motion between two systems or frames of reference. One consequ...

chlorofluorocarbons

(Encyclopedia)chlorofluorocarbons klōrˌəflo͝orˈəkärˌbənz, klôrˌ– [key] (CFCs), organic compounds that contain carbon, chlorine, and fluorine atoms. CFCs are highly effective refrigerants that were deve...

El Centro

(Encyclopedia)El Centro ĕl sĕnˈtrō [key], city (2020 pop. 44,322), seat of Imperial co., SE Calif., near the ...