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Iowa State University of Science and Technology

(Encyclopedia)Iowa State University of Science and Technology, at Ames, commonly known as Iowa State University; land-grant with state and federal support; coeducational; chartered 1858, opened 1868 as an agricultu...

magnetohydrodynamics

(Encyclopedia)magnetohydrodynamics măgnēˌtōhīˌdrōdīnămˈĭks [key], study of the motions of electrically conducting fluids and their interactions with magnetic fields. The principles of magnetohydrodynamic...

Aiken

(Encyclopedia)Aiken, city (2020 pop. 32,025), seat of Aiken co., W S.C.; inc. 1835. A resort and polo center and a training area for Thoroughbreds, Aiken has apparel, printing and publishing, drug, and ...

Akasaki, Isamu

(Encyclopedia)Akasaki, Isamu, 1929–2021, Japanese physicist, b. Chiran, Japan, Kyoto Univ. (BA, 1942), Nagoya Univ. (Ph.D., 1964). Aftger graduating from college, Akasaki worked as an engineer before ...

Kelvin temperature scale

(Encyclopedia)Kelvin temperature scale, a temperature scale having an absolute zero below which temperatures do not exist. Absolute zero, or 0K, is the temperature at which molecular energy is a minimum, and it c...

Stirling engine

(Encyclopedia)Stirling engine, an external combustion reciprocating engine having an enclosed working fluid that is alternately compressed and expanded to operate a piston, thus converting heat from a variety of so...

conservation laws

(Encyclopedia)conservation laws, in physics, basic laws that together determine which processes can or cannot occur in nature; each law maintains that the total value of the quantity governed by that law, e.g., mas...

oil industry

(Encyclopedia)oil industry, the business of discovering oil (petroleum), extracting it from the ground, refining it into a variety of products, and distributing it to the public. The development of the oil industry...

cosmology

(Encyclopedia)cosmology, area of science that aims at a comprehensive theory of the structure and evolution of the entire physical universe. The earliest pre-Ptolemaic theories assumed that the earth was the cent...

Hughes, Sir Samuel

(Encyclopedia)Hughes, Sir Samuel, 1853–1921, Canadian political leader, b. Ontario. A schoolteacher and newspaper editor, he entered the House of Commons in 1892 and held a seat until his death. As minister of mi...