Does the color in infrared always correspond to temperature? Like, more so than it does in the visible spectrum?
In: Physics
All objects glow, in a “color” that depends on their temperature. You see this in hot metal, which glows dull red, then bright red, then orange, yellow, and brilliant white as you heat it up (eventually, it would approach a light blue if it kept getting hotter).
At room temperature, this glow is basically zero in the wavelengths our eyes can see. But it’s quite bright in the infrared. So what we mean by “heat vision” is “vision that sees the glow of things that are warm by human standards”.
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