What are special properties of the visible light spectrum except of being visible by us?

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It seems like other electromagnetic waves have some special properties. Microwave can heat the water molecules, infrared is basically “heat waves”. UV have enough energy to damage DNA and harm a living things. X-rays and Gamma radiation can penetrate a lot of material and also damage DNA. But the visible part is just visible, or it have some other properties?

In: Physics

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Anonymous 0 Comments

You are looking at it the wrong way. Whoever discovered UV light thought of it the same way as light unfit for vision.

Our eyes are fine tuned for this particular light. Why did we evolve to see this light and not some other light? Perhaps animals that saw this light were more successful than others.

We know eyes evolved for underwater creatures first so it had to pass through both air and water. We also know that if visible light passed through any object it wouldn’t be very useful to us. So those contraints already narrow it down to visible light alongside other things.

Also not that we sense (but not see) even more invisible light as heat.

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