Columbia Encyclopedia

Search results

500 results found

earth, in geology and astronomy

(Encyclopedia)CE5 A. Cross section of the earth, showing its shells B. Detailed cross section of the crust and upper mantle: The lithosphere consists of the hard rock in the crust and upper mantle, lying above t...

Stratospheric Observatory for Infrared Astronomy

(Encyclopedia)Stratospheric Observatory for Infrared Astronomy: see infrared astronomy. ...

hydrophone

(Encyclopedia)hydrophone hīˈdrəfōnˌ [key], device that receives underwater sound waves and converts them to electrical energy; the voltage generated can then be read on a meter or played through a loudspeaker....

transformer

(Encyclopedia)transformer, electrical device used to transfer an alternating current or voltage from one electric circuit to another by means of electromagnetic induction. The simplest type of transformer consists ...

Wilson, August

(Encyclopedia)Wilson, August, 1945–2005, American playwright and poet, b. Pittsburgh as Frederick August Kittel, Jr. Largely self-educated, Wilson first attracted wide critical attention with his Broadway debut, ...

McEwan, Ian

(Encyclopedia)McEwan, Ian (Ian Russell McEwan) məkyo͞oˈən [key], 1948–, English novelist, b. Aldershot, B.A. Univ. of Sussex, 1970, M.A. Univ. of East Anglia, 1971. His early short-story collections, First Lo...

facsimile

(Encyclopedia)facsimile făksĭmˈəlē [key] or fax, in communications, system for transmitting pictures or other graphic matter by wire or radio. Facsimile is used to transmit such materials as documents, telegra...

Samak Sundaravej

(Encyclopedia)Samak Sundaravej säˈmäk so͞ontärəwāˈ [key], 1935–2009, Thai political leader, prime minister of Thailand (2008), b. Bangkok. He earned a law degree from Thammasat Univ., Bangkok, then worked...

ultrasound

(Encyclopedia)ultrasound or sonography, in medicine, technique that uses sound waves to study and treat hard-to-reach body areas. In scanning with ultrasound, high-frequency sound waves are transmitted to the area ...

Pence, Mike

(Encyclopedia)Pence, Mike (Michael Richard Pence), 1959–, Vice President of the United States (2017–21), b. Columbus, Ind., grad. Hanover College, 1981, Indiana Univ. law school, 1986. A Republican, he twice ra...