Let me rephrase the question – Do we call the Visible Spectrum that because that’s what we can see or is there something different about that part of electromagnetic spectrum (ES) that allow vision to occur. Alternately, If light is dual in nature, being both a wave and a particle, is that the same for other parts of the ES?
Which brings me to the question that I’m most curious about; would it be possible for a creature exist that can see, the same way we see, but using frequencies from other areas of the ES?
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It’s the section bordered by heat which wouldn’t be much good, as if you could see body temperature, you’d either get a constant glow from the heat of your eyeballs or have to have eyes cooler than the rest of your body.
The other end is UV, which gets into the damaging range so your eyes filter that part out.
There are boundaries, eg, sunglasses to cut out even more UV, someone decently famous had a cataract taken out and could apparently see more into UV.
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