Edward,

> >\* Philosophical Rant ON:
>
> >**About 15% of the male population is Red/Green color blind. Be careful
> what you do with bi-color leds.
>
>
> >Rant OFF*\
>
> >Edward Gisske, P.E.

Yes, I don't know whicj idiot decided that green and red were the right colours to use for safe and danger (a
railway person, I assume) but they really messed it up!  Nature's "danger" signal is yellow (ask any bee or
wasp!) and it would have made a lot more sense to use green and yellow as the two signal colours.  Too late to
change it now, though  :-(


Some friends and I were discussing what might be the worst job for someone who is colour-blind, and we
reckoned it was bomb-disposal.  "I'm about to cut the sort-of greeny-reddy-browny wire..."   :-)

Cheers,

Howard Winter
St.Albans, England

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