P3D Polarized Chalk, etc. Re: PHOTO-3D digest 2859

[Daniel Lyons <djlyons@xxxxxxxxxxxxx>]

    As a graphics communications, printing and publishing Professor I,
too, would like to know about this inexpensive wonder. It seems to defy
all of the laws of physics of which I am aware. Did Newton, Einstein,
Land, etc., miss something obvious?
    Without further demonstration or explanation it appears to be of
most value to the payee on the check with little value to the buyer or
anyone else. I suspect that the only thing that would really drift off
would be my $2.99 . . . and not the image.
    If, however, someone can verify and explain this revolutionary
discovery, I would also like to know.  Then perhaps some of my more
creative students could find a whole new career area to explore. You
know, they could become sort of sidewalk Picassos --- in depth. Just
think of how it would revolutionize the world. You would no longer walk
ON the sidewalk pictures, but you would actually walk THROUGH them. What
a world wide canvas it would make. Life between the cracks. I can see it
now, your kids get some of this stuff and decide to play hop scotch. Two
skips and they fall into oblivion. :-)
    Seriously, this appears to be one of those journalistic aberrations
which occur from time to time --i f not an out and out scam. And if so,
the price is too high.

                                            Dan


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