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adding machine
(Encyclopedia)adding machine: see calculator.digital-to-analog conversion
(Encyclopedia)digital-to-analog or D/A conversion, the process of changing discrete digital data into a continuously varying signal in relation to a standard or reference. There are two types of converters: electro...Tinguely, Jean
(Encyclopedia)Tinguely, Jean zhäN tăNglēˈ [key], 1925–91, Swiss artist. Tinguely is best known for his “metamechanics,” electromechanical sculptures that perform tasks such as painting or playing music. M...parimutuel betting
(Encyclopedia)parimutuel betting părˌĭmyo͞oˈtyo͞oĕl [key], system of cooperative wagering invented (c.1870) in France by Pierre Oller. According to the system, the holders of winning tickets divide the total...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 ...Wiener, Norbert
(Encyclopedia)Wiener, Norbert, 1894–1964, American mathematician, educator, and founder of the field of cybernetics, b. Columbia, Mo., grad. Tufts College, 1909, Ph.D. Harvard, 1913. In 1920 he joined the faculty...Packard, David
(Encyclopedia)Packard, David, 1912–96, American business executive, b. Pueblo, Colo., grad. Stanford (B.A., 1934; M.S., 1939). He and classmate William R. Hewlett opened a garage-based business, which became (193...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, Switzerland, in the...Joule, James Prescott
(Encyclopedia)Joule, James Prescott jo͞ol, joul [key], 1818–89, English physicist. His scientific researches began in his youth when he invented an electromagnetic engine. Joule made valuable contributions to th...Hewlett, William Redington
(Encyclopedia)Hewlett, William Redington hyo͞oˈlĭt [key], 1913–2001, American engineer and business executive, b. Ann Arbor, Mich., grad. Stanford (B.S. 1934, Engineer 1939), Massachusetts Institute of Technol...Browse by Subject
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