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DK Science & Technology: Telecommunications

COMMUNICATIONS SATELLITE HOW DOES A TELEPHONE WORK? HOW DOES A RADIO WORK? HOW DOES A TELEVISION WORK? HOW DOES A CELL PHONE WORK? BIOGRAPHY: GUGLIELMO MARCONI Italian, 1874-1937 ELECTROMAGNETIC…

1970 Grammy Awards

Record of the Year“Bridge Over Troubled Water,” Simon and GarfunkelAlbum of the YearBridge Over Troubled Water, Simon and Garfunkel (Columbia)Song of the Year“Bridge Over Troubled Water,” Paul…

liquid crystal

(Encyclopedia) liquid crystal, liquid whose component particles, atoms or molecules, tend to arrange themselves with a degree of order far exceeding that found in ordinary liquids and approaching…

Lovell, Sir Bernard

(Encyclopedia) Lovell, Sir Bernard (Sir Alfred Charles Bernard Lovell), 1913–2012, English radio astronomer, b. Oldland Common, Gloucestershire, England, Ph.D. Univ. of Bristol, 1936. He was a member…

Moseley, Henry Gwyn Jeffreys

(Encyclopedia) Moseley, Henry Gwyn JeffreysMoseley, Henry Gwyn Jeffreysmōzˈlē [key], 1887–1915, English physicist, grad. Trinity College, Oxford, 1910. He began his research under Ernest Rutherford…

Nakamura, Shuji

(Encyclopedia) Nakamura, Shuji, 1954–, Japanese physicist and electronics engineer, grad. Univ. of Tokushima (D.Eng., 1994). Nakamura joined the Nichia Corporation in 1977, and it was there that he…

salsa

(Encyclopedia) salsa salsa sälˈsə, sôlˈ– [key], American popular music developed largely in New York City during…

Ramakrishnan, Venkatraman

(Encyclopedia) Ramakrishnan, Venkatraman, 1952–, American molecular biologist, b. India, Ph.D. Ohio Univ., 1976. He was a researcher at Oak Ridge National Laboratory (1982–83) and at Brookhaven…

thulium

(Encyclopedia) thuliumthuliumth&oomacr;ˈlēəm [key] [from Thule, an ancient name for Scandinavia], metallic chemical element; symbol Tm; at. no. 69; at. wt. 168.93421; m.p. about 1,545℃; b.p. 1,…

seeing

(Encyclopedia) seeing, in astronomy, the clarity with which stars and other celestial objects can be observed. It is primarily determined by the atmosphere of the earth. The most obvious phenomenon…