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Rhoden, Ausser and Inner

(Encyclopedia)Rhoden, Ausser and Inner: see Appenzell, Switzerland. ...

Persian art and architecture

(Encyclopedia)Persian art and architecture, works of art and structures produced in the region of Asia traditionally known as Persia and now called Iran. Bounded by fierce mountains and deserts, the high plateau of...

Taylor, Brook

(Encyclopedia)Taylor, Brook, 1685–1731, English mathematician. He originated Taylor's theorem, a formula important in differential calculus, which relates a function to its derivatives by means of a power series....

tunneling

(Encyclopedia)tunneling, quantum-mechanical effect by which a particle can penetrate a barrier into a region of space that would be forbidden by ordinary classical mechanics. Tunneling is a direct result of the wav...

hydraulics

(Encyclopedia)hydraulics, branch of engineering concerned mainly with moving liquids. The term is applied commonly to the study of the mechanical properties of water, other liquids, and even gases when the effects ...

Jewett, Charles Coffin

(Encyclopedia)Jewett, Charles Coffin jo͞oˈĭt [key], 1816–68, American librarian, b. Lebanon, Maine. Jewett prepared his first catalog of books as librarian of Andover Theological Seminary. He was appointed lib...

Schlemmer, Oskar

(Encyclopedia)Schlemmer, Oskar ôsˈkär shlĕmˈər [key], 1888–1943, German painter and stage designer. Known for his mechanical, geometricized forms, Schlemmer taught painting, sculpture, and stage design at t...

watt

(Encyclopedia)watt [for James Watt], abbr. W, unit of power, or work done per unit time, equal to 1 joule per second. It is used as a measure of electrical and mechanical power. One watt is the amount of power that...

voting machine

(Encyclopedia)voting machine, instrument for recording and counting votes. The voting machine itself is generally positioned in a booth, often closed off by a curtain to assure secrecy for the voter. In the case of...

carding

(Encyclopedia)carding, process by which fibers are opened, cleaned, and straightened in preparation for spinning. The fingers were first used, then a tool of wood or bone shaped like a hand, then two flat pieces of...