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Nir Kumar Sambahangphe Limbu
NIR or Nir may refer to: Science and technology * Near-infrared, a region within the infrared part of the electromagnetic radiation spectrum * Near-infrared spectroscopy, a spectroscopic method that uses the near-infrared region (from 780 nm to 2500 nm). * National Identity Register, a former UK database * National Internet registry, which coordinates IP address and other resource allocation * NIR, proposed variation of the SECAM colour television system in the Soviet Union * ''Numéro d'inscription au répertoire national d'identification des personnes'' and ''numéro d'inscription au répertoire'', national identity numbers; see INSEE code Places * Nir, Iran (other), several places in Iran * Negros Island Region, one of the 18 regions of the Philippines * Northern Ireland (FIFA country code: NIR, ISO 3166 code: GB-NIR), a part of the United Kingdom * Ness Islands Railway, a miniature railway in scotland Other uses * Nir (name), a Hebrew given name and surname * Northern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Near-infrared
Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of Light, visible light. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from around 1 millimeter (300 GHz) to the nominal red edge of the visible spectrum, around 700 nanometers (430 Terahertz (unit), THz). Longer IR wavelengths (30 μm-100 μm) are sometimes included as part of the terahertz radiation range. Almost all black-body radiation from objects near room temperature is at infrared wavelengths. As a form of electromagnetic radiation, IR propagates energy and momentum, exerts radiation pressure, and has properties corresponding to Wave–particle duality, both those of a wave and of a Subatomic particle, particle, the photon. It was long known that fires emit invisible heat; in 1681 the pioneering experimenter Edme Mariotte showed that glass, though transparent to sunlight, obstructed rad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
