far-infrared

Beyond visible warmth

Far-infrared refers to the portion of the infrared spectrum with the longest wavelengths, bordering on microwaves.

In physics and astronomy, far-infrared radiation reveals cool objects like dust clouds and distant galaxies invisible to optical telescopes.

In wellness marketing, far-infrared saunas claim therapeutic benefits from this gentle radiant heat, though evidence remains limited.

spectroscopy

wavelength

Spatial repetition interval

micrometers · bandwidth · detector · spectrometer · photons · frequency · electromagnetic · submillimeter

thermal

heat

Transferred thermal energy

emission · blackbody · pyrometer · thermography · sauna · radiative · ambient · emissivity

therapeutic

sauna

Heated room for sweating

arthritis · spa · metabolism · recovery · inflammation

astronomy

cosmic

Pertaining to the universe

redshift · protoplanetary

Opposites
electromagnetic spectrum position

far-infraredultraviolet

Wavelengths shorter than violet

X-rays · gamma rays · UV-C · visible light · UV-B

infrared subdivision

far-infrarednear-infrared

Radiation just past visible

visibility to humans

far-infraredvisible light

Radiation the eye detects

visible spectrum · white light · sunlight

Family

infrared, infra

Familiarity
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