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Re: How many colors does a rainbow have?

by swampyankee (Parson)
on Feb 01, 2009 at 15:19 UTC ( #740544=note: print w/replies, xml ) Need Help??


in reply to How many colors does a rainbow have?

Of course, I'm tempted to say "42," but will resist the temptation.

I wonder if the number of colors (or colours or χρώματα or 색깔 or 颜色) one sees in a rainbow is as much cultural as it is physiological. See, for example here or here.


Information about American English usage here and here. Floating point issues? Please read this before posting. — emc

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[Corion]: As for somebody hosting national conferences, we don't always know the kind of connectors and aspect ratios available ;)
[ambrus]: Corion: well sure, but that's the similar to any printed document, and the margin is diminishing with today's technology. Video games no longer have to assume that the CRTs won't show the edges of the screen.
[Corion]: If you cram your slides with that much information, they might work in an "offline" situation but not very well for a live presentation IMO
[ambrus]: Corion: in that case I also ask the people who rent the conference rooms to tell conference organizers about the available tech.
[Corion]: ambrus: No, you're misunderstanding. If you place content too far on the left/right/top/ bottom, people might not see it because the view is obstructed ;)(
[Corion]: In Amsterdam, the screen went down to the bottom of the stage (60cm above ground) and the seating was on the ground, meaning that the rows in the back couldn't see the bottom of slides.
[Corion]: There also were some columns that meant that maybe you couldn't see the left/right edge of a slide.
[ambrus]: Corion: Sure. I've had a course in a 50 seat lecture hall that has two fucking columns in the middle.
[Corion]: Talking about it, the top should be fairly visible in the situations I've experienced at least. The top is uncomfortable for people in the first three rows, but that's life ;)
[ambrus]: The pillars are there because this is in the 6th floor of building R of BME, which is an attic that was built in after the original building, which is also why the elevator doesn't go that high and the windows are tiny.

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