Re: Re Edmund Scientific 3D device

["Timothy M. Klein" <klein@xxxxxxxxxxxxxxxx>]

> I have one of the devices that Euni Gi Paek refers to and looking at my
> copy of the Edmund scientific catalogue it seems identical to that one.

These have been around a long time.  I remember being fascinated by one
when I was a kid.  I just couldn't understand how that coin could look
so solid and not really be there.

American Science & Surplus has them too, and I think they're a bit cheaper
there (US$40, I think).  Their address, as well as that of Edmund
Scientific, is in the 3D Products & Services file.

>  With mine I find the effect is not as good as it could possibly be because
> the mirrors are not the highest quality ,although they warn to be very
> carefull cleaning dust etc off they are not first surface mirrors but I
> think are self coloured silver plastic.

I recently saw one in a "scientific toy" store.  You're right -- the image
quality of the coin wasn't good enough to fool me into thinking it was
real.  I guess they just don't make 'em like they used to.


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     Tim Klein           Dallas, Texas, U.S.A.            klein@xxxxxxxxxx
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