What is Kelvin?
The kelvin, (spelled with a lowercase K) is a measurement of heat energy or temperature, which advances in the same increments, as does Celsius. Its principle difference is that kelvin measurements, written as K have a much lower starting point: 0K or 0 Kelvin (note the absence of the degree symbol °). This temperature, measured as -273.15° C, is the point at which no heat energy exists in a substance, and is called absolute zero. To determine the temperature based on kelvins from a Celsius temperature, you merely need to subtract 273.15 from the Celsius number. Engineer, physicist, and mathematician, William Thomson, developed the concept of the kelvin in the 19th century. He later was titled Baron Kelvin, after the Kelvin River located near Glasgow University where he had developed the temperature scale. His desire in creating this measurement was to provide a simple way to measure absolute values, particularly absolute zero in a simpler way than was expressed with the Celsius scale.
Kelvin is, or relates to, a unit increment of temperature known as the kelvin (symbol: K). The kelvin is the SI unit of temperature and is one of the seven SI base units. The Kelvin scale is a thermodynamic (absolute) temperature scale where absolute zerothe lowest possible temperature where nothing could be colder and no heat energy remains in a substanceis defined as being equivalent to zero kelvin (0 K).
