Columbia Encyclopedia
Search results
51 results found
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...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 ...stove
(Encyclopedia)stove, device used for heating or for cooking food. The stove was long regarded as a cooking device supplementary to the fireplace, near which it stood; its stovepipe led into the fireplace chimney. I...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 ...microprocessor
(Encyclopedia)microprocessor, integrated circuit containing the arithmetic, logic, and control circuitry required to interpret and execute instructions from a computer program. When combined with other integrated c...Lowe, Thaddeus Sobieski Coulincourt
(Encyclopedia)Lowe, Thaddeus Sobieski Coulincourt thădˈēəs sōˌbē-ĕsˈkē kōˈlĭnkôrtˌ lō [key], 1832–1913, American aeronaut and inventor, b. Coos co., N.H. He flew (1861) a distance of 900 mi (1,448...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 ...Browse by Subject
- Earth and the Environment +-
- History +-
- Literature and the Arts +-
- Medicine +-
- People +-
- Philosophy and Religion +-
- Places +-
- Africa
- Asia
- Australia and Oceania
- Britain, Ireland, France, and the Low Countries
- Commonwealth of Independent States and the Baltic Nations
- Germany, Scandinavia, and Central Europe
- Latin America and the Caribbean
- Oceans, Continents, and Polar Regions
- Spain, Portugal, Italy, Greece, and the Balkans
- United States, Canada, and Greenland
- Plants and Animals +-
- Science and Technology +-
- Social Sciences and the Law +-
- Sports and Everyday Life +-