kelvinsäteisiä
Kelvinsäteisiä is a Finnish term that translates roughly to “Kelvin radiations” and appears in some Finnish-language discussions to refer to electromagnetic radiation associated with a specific temperature measured in kelvin. The expression is not a standard term in international physics; in mainstream discourse such radiation is described in terms of blackbody radiation and Planck’s law, with spectral properties determined by temperature T in kelvin.
Origin and usage: The word is formed from kelvin (the SI unit of thermodynamic temperature) and säteet
Physical interpretation: If kelvinsäteisiä is understood as a reference to blackbody radiation, then the radiation’s distribution
Notes: Because the term is informal, its exact meaning can vary between writers. In rigorous scientific communication,
See also: Blackbody radiation, Planck’s law, Wien’s displacement law, Stefan–Boltzmann law, Color temperature.