The kelvin (symbol: K) is a unit increment of temperature and is one of the seven SI base units. The Kelvin scale is a thermodynamic temperature scale where absolute zero ? the coldest possible temperature ? is zero kelvins (0 K). The Kelvin scale and the kelvin are named after the Northern Irish physicist and engineer William Thomson, 1st Baron Kelvin (1824 ? 1907), who wrote of the need for an ?absolute thermometric scale.? Definition of kelvin The kelvin unit and its scale, by [LINK: http://www1.bipm.org/en/si/si_brochure/chapter2/2-1/2-1-1/kelvin.html] international agreement, are defined by two points: absolute zero, and the triple point of specially prepared water (VSMOW) . This definition also precisely relates the Kelvin scale to the Celsius scale. Absolute zero?the temperature at which nothing could be colder and minimal heat energy remains in a sub

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