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11 Οκτ 2024 · an electromagnetic wave of a frequency between about 104 and 1011 or 1012 Hz, as used for long-distance communication. infrared light. infrared rays are used as a source of heat and to discover areas of heat differences. visible light.
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Infrared in and out of Earth's atmosphere. Near infrared rays can detect changes on the Earth's surface such as: Atmosphere, health of vegetation, forests and other land cover.
10 Αυγ 2016 · What are Infrared Waves? Infrared waves, or infrared light, are part of the electromagnetic spectrum. People encounter Infrared waves every day; the human eye cannot see it, but humans can detect it as heat. A remote control uses light waves just beyond the visible spectrum of light—infrared light waves—to change channels on your TV. This […]
12 Απρ 2020 · For purposes of this article, I will refer to the infrared light spectrum as “near-infrared”, or simply, “IR”. Near-infrared refers to the spectrum of light just beyond the range humans can detect with their eyesight. This light range is between 700 – 1200 nm (nanometers).
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18 Σεπ 2024 · Infrared radiation, that portion of the electromagnetic spectrum that extends from the long wavelength, or red, end of the visible-light range to the microwave range. Invisible to the eye, it can be detected as a sensation of warmth on the skin.
