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 ... 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 ...
... Such nonuniform traveling waves are common in many physical problems, including the mechanics of the cochlea and waves on hanging ropes ...
... Consider a plane wave propagating in an anisotropic medium, with a relative permittivity tensor ε, where the refractive index n, is defined by (assuming a relative ... 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 the ... Therefore, for each direction of the wave normal, two wavevectors k are allowed ...
... 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 ... In the 1980s, a subculture developed alongside dark wave music, whose members were called "wavers" or "dark wavers" ...
... bands mixed elements of dark wave and ethereal wave with later developments in electronic music ...
More definitions of "wave":
- (verb): Set waves in.
Example: "She asked the hairdresser to wave her hair"
- (verb): Signal with the hands or nod.
- (noun): (physics) a movement up and down or back and forth.
- (verb): Twist or roll into coils or ringlets.
- (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 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): A hairdo that creates undulations in the hair.
- (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"
- (noun): An undulating curve.
Famous quotes containing the word wave:
the tide turning. Last
eager wave over-
taken and pulled back
by first wave of the ebb.”
—Denise Levertov (b. 1923)
“Well, from what you tell me I should say that it was not only a landslide but a tidal wave and holocaust all rolled into one general cataclysm.”
—William Howard Taft (18571930)
“I sometimes compare press officers to riflemen on the Sommemowing down wave upon wave of distortion, taking out rank upon rank of supposition, deduction and gossip.”
—Bernard Ingham (b. 1932)