# Are radio waves red?

**URL:** <https://boards.straightdope.com/t/are-radio-waves-red/725102>\
**Category:** Factual Questions\
**Created:** [July 14, 2015, 2:27am UTC](https://boards.straightdope.com/t/are-radio-waves-red/725102 "2015-07-14T02:27:38Z")\
**Posts on this page:** 1\
**Page:** 2

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**Author:** ![Machine\_Elf](https://avatars.discourse-cdn.com/v4/letter/m/82dd89/32.png) [@Machine\_Elf](https://boards.straightdope.com/u/Machine_Elf)\
**Post date:** [July 22, 2015, 2:52pm UTC](https://boards.straightdope.com/t/are-radio-waves-red/725102/21 "2015-07-22T14:52:48Z")

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> [@Stinky\_Pete](#):
>
> There are people who can see more colors than most of us.
> 
> “Researchers suspect, though, that some people see even more. Living among us are people with four cones, who might experience a range of colors invisible to the rest. It’s possible these so-called tetrachromats see a hundred million colors, with each familiar hue fracturing into a hundred more subtle shades for which there are no names, no paint swatches. And because perceiving color is a personal experience, they would have no way of knowing they see far beyond what we consider the limits of human vision.”

Makes you wonder about the [mantis shrimp,](https://en.wikipedia.org/wiki/Mantis_shrimp#Eyes) which has 16 different receptors (some of which can detect circularly polarized light).

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