Infrared is a type of light that cannot be perceived by the human eye due to its wavelength. The major natural source of infrared radiation is the sun. However, thisinfrared radiation has nothing to do with dangerous UV radiation, which can cause sunburn, for example. A special characteristics of infrared radiation is that its energy isgiven off in the form of heat. This infrared energy is very effective in contrast to otherheat methods because it only heats the body parts, which infrared radiation comes incontact with. We can feel this warming effect on our skin.
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