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microwave
(Encyclopedia)microwave, electromagnetic wave having a frequency range from 1,000 megahertz (MHz) to 300,000 MHz, corresponding to a wavelength range from 300 mm (about 12 in.) to 1 mm (about 0.04 in.). Like light ...microwave oven
(Encyclopedia)microwave oven, device that uses microwaves to rapidly cook food. The microwaves cause water molecules in the food to vibrate, producing heat, which is distributed through the food by induction. A spe...magnetron
(Encyclopedia)magnetron măgˈnĭtrŏnˌ [key], vacuum tube oscillator (see electron tube) that generates high-power electromagnetic signals in the microwave frequency range. Its operation is based on the combined ...Smoot, George Fitzgerald, 3d
(Encyclopedia)Smoot, George Fitzgerald, 3d smo͞ot [key], 1945–, American astrophysicist, b. Jacksonville, Fl., Ph.D. Massachusetts Institute of Technology 1970. Smoot has been a professor at the Univ. of Califor...multiplexing
(Encyclopedia)multiplexing, in communication, technique whereby two or more independent messages, or information-bearing signals, are carried by a single common medium, or channel. When multiplexing is performed, t...Hansen, William Webster
(Encyclopedia)Hansen, William Webster, 1909–49, U.S. physicist, b. Fresno, Calif. Hansen received his doctorate in physics from Stanford in 1933 and joined the faculty there in 1934. He invented the high-quality ...Edina
(Encyclopedia)Edina ēdīˈnə [key], town (2020 pop. 53,494), Hennepin co., E Minn., a residential suburb ...Methuen
(Encyclopedia)Methuen mĭtho͞oˈən [key], town (1990 pop. 39,990), Essex co., NE Mass., a suburb of Boston; settled c.1642, set off from Haverhill 1725. Methuen is industrial, and among its products are food item...kitchen
(Encyclopedia)kitchen, separate room or other space set aside for the cooking or preparation of meals. When cooking first moved indoors, it was performed, with other domestic labors, in the common room, where the f...SETI
(Encyclopedia)SETI sĕtˈē [key] [Search for ExtraTerrestrial Intelligence], name given to a series of independent programs to detect radio signals from civilizations beyond the solar system. Modern SETI efforts c...Browse by Subject
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