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%ما هو (من)٪ 1 - تعريف

TYPE OF WAVE IN THE OCEAN OR ATMOSPHERE
Kelvin Wave; Kelvin waves
  • An equatorial Kelvin wave, captured through sea surface height anomalies

kelvin         
  • Lord Kelvin]], the namesake of the unit of measure.
  • An [[ice]] water bath offered a practical [[calibration]] point for [[thermometers]] in a time before the physical nature of [[heat]] was well understood.
  • caesium-133 hyperfine transition frequency]] and the [[Planck constant]]. Both ''k'' and ''k''<sub>B</sub> are accepted shorthand for the Boltzmann constant.
SI UNIT OF THERMODYNAMIC TEMPERATURE
Kelvin degree; Kelvins; Kelvin temperature scale; Degree Kelvin; Degrees Kelvin; °K; Kelvin scale; Gigakelvin; Petakelvin; Zettakelvin; Exakelvin; Kelvin scale of temperature; Terakelvin; Attokelvin; Femtokelvin; Kilokelvin; Yottakelvin; Yoctokelvin; Zeptokelvin; Kelvin (unit); Kevin scale; DegK; Kelven; Decikelvin; ΜK; Kelvin absolute temperature scale; Thermodynamic scale of temperature; Centikelvin; Hectokelvin; Decakelvin; Kelvin thermometer; Kelvin unit; Kelvin degrees; Kelvin temp; Ronnakelvin; Quettakelvin; Rontokelvin; Quectokelvin
(abbrev.: K)
¦ noun the SI base unit of thermodynamic temperature, equal in magnitude to the degree Celsius.
Origin
C19: named after the British physicist William T. Kelvin.
Kelvin scale         
  • Lord Kelvin]], the namesake of the unit of measure.
  • An [[ice]] water bath offered a practical [[calibration]] point for [[thermometers]] in a time before the physical nature of [[heat]] was well understood.
  • caesium-133 hyperfine transition frequency]] and the [[Planck constant]]. Both ''k'' and ''k''<sub>B</sub> are accepted shorthand for the Boltzmann constant.
SI UNIT OF THERMODYNAMIC TEMPERATURE
Kelvin degree; Kelvins; Kelvin temperature scale; Degree Kelvin; Degrees Kelvin; °K; Kelvin scale; Gigakelvin; Petakelvin; Zettakelvin; Exakelvin; Kelvin scale of temperature; Terakelvin; Attokelvin; Femtokelvin; Kilokelvin; Yottakelvin; Yoctokelvin; Zeptokelvin; Kelvin (unit); Kevin scale; DegK; Kelven; Decikelvin; ΜK; Kelvin absolute temperature scale; Thermodynamic scale of temperature; Centikelvin; Hectokelvin; Decakelvin; Kelvin thermometer; Kelvin unit; Kelvin degrees; Kelvin temp; Ronnakelvin; Quettakelvin; Rontokelvin; Quectokelvin
¦ noun a scale of temperature with absolute zero as zero, and the triple point of water as exactly 273.16 degrees.
Kelvin         
  • Lord Kelvin]], the namesake of the unit of measure.
  • An [[ice]] water bath offered a practical [[calibration]] point for [[thermometers]] in a time before the physical nature of [[heat]] was well understood.
  • caesium-133 hyperfine transition frequency]] and the [[Planck constant]]. Both ''k'' and ''k''<sub>B</sub> are accepted shorthand for the Boltzmann constant.
SI UNIT OF THERMODYNAMIC TEMPERATURE
Kelvin degree; Kelvins; Kelvin temperature scale; Degree Kelvin; Degrees Kelvin; °K; Kelvin scale; Gigakelvin; Petakelvin; Zettakelvin; Exakelvin; Kelvin scale of temperature; Terakelvin; Attokelvin; Femtokelvin; Kilokelvin; Yottakelvin; Yoctokelvin; Zeptokelvin; Kelvin (unit); Kevin scale; DegK; Kelven; Decikelvin; ΜK; Kelvin absolute temperature scale; Thermodynamic scale of temperature; Centikelvin; Hectokelvin; Decakelvin; Kelvin thermometer; Kelvin unit; Kelvin degrees; Kelvin temp; Ronnakelvin; Quettakelvin; Rontokelvin; Quectokelvin
The kelvin, symbol K, is the SI base unit of temperature, named after the Belfast-born and University of Glasgow based engineer and physicist William Thomson, 1st Baron Kelvin (1824–1907). The Kelvin scale is an absolute thermodynamic temperature scale, meaning it uses absolute zero as its null point.

ويكيبيديا

Kelvin 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. This means that it retains its shape as it moves in the alongshore direction over time.

A Kelvin wave (fluid dynamics) is also a long scale perturbation mode of a vortex in superfluid dynamics; in terms of the meteorological or oceanographical derivation, one may assume that the meridional velocity component vanishes (i.e. there is no flow in the north–south direction, thus making the momentum and continuity equations much simpler). This wave is named after the discoverer, Lord Kelvin (1879).