Far Infrared
Far Infrared (FIR) is a region in the electromagnetic spectrum with wavelengths ranging from 15 to 1000 microns. In space and astronautical engineering, FIR radiation is used for various applications such as remote sensing, thermal imaging, and communication. FIR radiation is emitted by all objects with a temperature above absolute zero, and it can penetrate through certain materials such as clouds, smoke, and fog. This makes it useful for remote sensing applications, where it can be used to detect and analyze the temperature and composition of objects and environments from a distance. FIR radiation is also used for thermal imaging, where it can be used to detect and visualize temperature differences in objects and environments. Additionally, FIR radiation can be used for communication purposes, as it can penetrate through certain materials and is not affected by interference from other electromagnetic waves.
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