Re: Re: Fwd: [rlhymers-watcher] Glasses, Drugs and Color Perception

From: Joy McCann <joy.mccann_at_gmail.com_at_hypermail.org>
Date: Sun, 3 Jun 2007 22:33:26 -0700

I don't think anyone here has suggested that acid is anything but a
Good Thing (hat tip to Martha Stewart).

As a matter of fact, on the last cabin trip I received criticism from
multiple sources about drinking martinis in a high-altitude
environment, and risking dehydration. Of course, I felt that making
dirty martinis--which involve a tiny amount of salty olive
brine--would act as a hedge against the risk of too much of a drying
effect from the alcohol. Like an athlete taking salt tablets, except
totally different.

However, upon reflection I've decided that perhaps martinis aren't a
great idea when one is in the mountains. So next time we go, I'll
simply bring lots of LSD. We'll have the tabs in a candy dish on the
counter. (Don't worry--that SHOULD place them out of reach of the
kids. Probably. Perhaps.)

--J



On 6/3/07, Hiram Gonash <okfreddy_at_hotmail.com> wrote:
>
>
>
>
>
>
> So what you're saying is no LSD?!?
>
> Crap.
>
> Back to chocolate then.
>
> --- In OliveStarlightOrchestra_at_yahoogroups.com, "herownsourgelatine"
>
> <dlinden_at_...> wrote:
> >
> > --- In OliveStarlightOrchestra_at_yahoogroups.com, Bark of Delight
> <barkofdelight_at_>
> > wrote:
> > >
> > >
> > > --- Joy McCann <joy.mccann_at_> wrote:
> > >
> > > > So do they really help? Or am I simply being
> > > > visually obsessive-compulsive
> > > > by putting the glasses on?
> > > > ....
> > > > Perhaps I'm nuts. Or maybe I need some LSD.
> > >
> > >
> > > Yes to all the above.
> > >
> > > DJQ to elaborate presently.
> > >
> > > Bark!
> > >
> > Here's the deal. If you are looking at a uniform field of a single
> color, it won't matter if
> > you have your glasses on or off-- your perception of that color will
> be the same. However,
> > if you are looking at a natural scene in which color varies a lot
> across the visual field, then
> > having corrected versus blurry vision will have a big impact.
> Essentially, when your vision
> > is defocused, then a single cone or small group of cones (the color
> sensing cell type in
> > your retina) will be receiving light from multiple adjacent points
> in your visual field. If
> > these points have different colors, then those colors will be
> blended as the image blurs.
> > You can see this effect another way by taking a slide or video
> projector and twiddling the
> > focus knob...
> >
> > hosg
> >
>
>
>
>
>
Received on 2007-06-03 22:33:33