I am writing a science fiction series and I wonder if how we perceive color is dependent on the wavelength of the light or something manufactured in the brain. For instance, if we evolved on a planet orbiting a red dwarf star, would we see different colors than someone visiting the planet. I know...

For a while now I've been maintaining a CogSci.SE facebook page (facebook-link). At the moment, every Monday at 20:00 CEST (UTC+2), i.e 18:00 GMT and 13:00 PDT (UTC-7), I post a question on the page. Unfortunately, after two months of work, the reach of these posts is not as good as I hoped for. ...