NOT KNOWN DETAILS ABOUT UNCOOLED THERMAL CAMERA

Infrared was found out in 1800 by Sir William Herschel being a sort of radiation further than pink light.[1] These "infrared rays" (infra could be the Latin prefix for "below") were applied mostly for thermal measurement.[2] You'll find 4 primary legislation of IR radiation: Kirchhoff's law of thermal radiation, Stefan–Boltzmann law, Planck's reg