"omniverse" <omn### [at] charternet> wrote:

> Interesting animation. Not sure why or how you did the sine wave type thing but
> since 1 hour equals 15 degrees longitude that would cause some inaccuracy if not
> near the middle of a time zone. And of course Daylight Savings Time, if in areas
> using that.

Well, South is a 180 degree rotation from my North / 12:00 starting point, and I
obviously have to calcualte the position of the hands, the rotation of the
watch, and the rotation of the arrow.
So I make those calculations, and find the difference between that angle and 180
degrees, and plot it vs time.


> I like that wall shadow clock. Someone made a comment about it not showing the
> hour and minute differently, would have to guess.

I use 2 different angles for hour and minute, to make them unequal lengths, use
a stepped cone atop a cylinder to further accentuate the difference, and I also
tried the different colored lights - as well as negative color values  :)

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