In physics a wave is a disturbance or oscillation that travels through spacetime, accompanied by a transfer of energy. Wave motion transfers energy from one point to another, often with no permanent displacement of the particles of the medium—that is, with little or no associated mass transport. They consist, instead, of oscillations or vibrations around almost fixed locations. Waves are described by a wave equation which sets out how the disturbance proceeds over time. The mathematical form of this equation varies depending on the type of wave.
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Some articles on wave:
... A Kelvin wave is a wave in the ocean or atmosphere that balances the Earth's Coriolis force against a topographic boundary such as a coastline, or a waveguide such as the equator ... A feature of a Kelvin wave is that it is non-dispersive, i.e ... the phase speed of the wave crests is equal to the group speed of the wave energy for all frequencies ...
... Consider a plane wave propagating in an anisotropic medium, with a relative permittivity tensor ε, where the refractive index n, is defined by (assum ... If the wave has an electric vector of the form (2) where r is the position vector and t is time, then the wave vector k and the angular frequency ω must satisfy Maxwell's equations in ... Therefore, for each direction of the wave normal, two wavevectors k are allowed ...
... bands mixed elements of dark wave and ethereal wave with later developments in electronic music ...
... Dark Wave or darkwave is a music genre that began in the late 1970s, coinciding with the popularity of New Wave and post-punk ... Building on those basic principles, dark wave added dark, introspective lyrics and an undertone of sorrow for some bands. 1980s, a subculture developed alongside dark wave music, whose members were called "wavers" or "dark wavers" ...
... Such nonuniform traveling waves are common in many physical problems, including the mechanics of the cochlea and waves on hanging ropes ...
More definitions of "wave":
- (noun): A member of the women's reserve of the United States Navy; originally organized during World War II but now no longer a separate branch.
- (noun): An undulating curve.
- (noun): Something that rises rapidly.
Example: "A wave of emotion swept over him"; "there was a sudden wave of buying before the market closed"; "a wave of conservatism in the country led by the hard right"
- (noun): A persistent and widespread unusual weather condition (especially of unusual temperatures).
- (noun): A movement like that of an ocean wave.
Example: "A wave of settlers"; "troops advancing in waves"
- (verb): Set waves in.
Example: "She asked the hairdresser to wave her hair"
- (verb): Signal with the hands or nod.
- (noun): One of a series of ridges that moves across the surface of a liquid (especially across a large body of water).
Synonyms: moving ridge
- (verb): Twist or roll into coils or ringlets.
- (noun): (physics) a movement up and down or back and forth.
- (noun): A hairdo that creates undulations in the hair.
Famous quotes containing the word wave:
“I dont know a great deal about life in Washington for womenI spent a summer there once working in the White House, and my main memories of the experience have to do with a very bad permanent wave I have always been convinced kept me from having a meaningful relationship with President Kennedy ...”
—Nora Ephron (b. 1941)
“The wave of evil washes all our institutions alike.”
—Ralph Waldo Emerson (18031882)
“The history of any nation follows an undulatory course. In the trough of the wave we find more or less complete anarchy; but the crest is not more or less complete Utopia, but only, at best, a tolerably humane, partially free and fairly just society that invariably carries within itself the seeds of its own decadence.”
—Aldous Huxley (18941963)