Temperature & Electromagnetic Radiation: Feynman's Perspective

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Temperature is defined by the vibration of atoms, which can indeed induce changing electric fields. Everything above absolute zero emits electromagnetic radiation, primarily in the form of infrared radiation, as seen in the human body. While an ice cube does radiate energy, it does not emit radio waves; instead, it emits lower-frequency infrared radiation. The concept of black body radiation explains how objects at various temperatures radiate energy based on their temperature. Understanding these principles clarifies the relationship between temperature and electromagnetic radiation.
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Since temperature is no more than vibrating atoms (in Feynman's words), wouldn't that induce a changing electric field, just very slow in some cases? If so, is everything that is not 0 degrees kelvin radiating some kind of EM radiation? Like an ice cube, does it radiate small amounts of radio waves? I this why the human body radiates infrared?
 
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