Re: Traffic lights and color blindness (was: Re: Correcting to be polite)

On Wed, 24 Aug 2005 02:25:22 -0500, Doug Wickstrom
<nimshubur@xxxxxxxxxxx> wrote:

>On Mon, 22 Aug 2005 18:13:39 GMT, in message
><nBoOe.282413$5V4.184645@pd7tw3no>
> "Karl Johanson" <karljohanson@xxxxxxx> caused electrons to dance
>and photons to travel coherently in saying:
>
>>Make sure he can tell which traffic
>>light is which, for example (I see red, amber & white, with a few of the
>>white lights looking slightly greenish of late).
>
>I think you're noticing the new ones that are LEDs instead of
>incandescent bulbs through a blue-green filter. The LED green
>lights are _intensely_ green, with no blue component at all, and
>much brighter than the incandescents they replace.
>
>I'll be interested to see if the Japanese start referring to them
>as "midori (green) shingo (signal)" instead of "aoi (blue)
>shingo."

Karl is color-dis-visioned.

--
Marilee J. Layman
.

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