Re: Gasoline thrown in the campfire and burning 3-D images!

[P3D Gary Nored <gnored@xxxxxxx>]

P3D Gabriel Jacob wrote:
> 
> Jon Golden writes:
> >Brad, As I said before....white reflects...black absorbs...I think you'll
> >find the solution here.
> 
> Larry Berlin writes:
> > If your slide mounts have a black side and a white side, that's EXTREMELY
> > POOR DESIGN for ANY slide holder regardless of which projector you may
> >use. Throw them out! If you need a system for distinguishing front from
> >back, some simple marking is much better than endangering your slides with
> >basic heat absorption from accidental misplacement in the projector. 
> 
> Gary Nored writes:
> >Stuff and nonsense! I use black/white RBTs, black side to the lamp.
> >They come out of my TDC 716 with twin 750 watt lamps still cool to the
> >touch. I don't see how, but fact is, they just don't get warm. Of
> >course, I never leave one in for 10 minutes either! If the audience
> >didn't fall asleep, I would.
> 
> Finally Gabriel writes:
> Boy never thought my mis-spend years as a youth would help in the above
> dilemma. When I was a young lad I would pass the time with my trusty
> magnifier (I forget the focal length it was) burning things. > 
> Gabriel

===============

All that physics stuff is absolutely true. I only noted an empirical
observation. I can only explain it by the presence of effective heat-
absorbing glass between the 750W furnaces and my precious slides.

I mount 'em black side to lamp, because I do most viewing in a 
Themelizer (did I get it right this time, George?) and I prefer
the appearance of the black background. Whatever the reason, black
slides just don't get very hot in my TDC -- however bad the design
(IMHO, the RBT design is GREAT).

Re the Nord projector -- seems like I should be related somehow,
but if so, I don't know about it. The whole Nored family derives
from some Swedish immigrants in the 18th century. Exactly why so
many of 'em settled in Central Texas, with its incredibly hot
summers (Santa Anna is reputed to have called off the war against
the Texians once because it was just too hot!) I can't imagine, but
here we are.

If you'd like info/opinion on the Nord, one of our local club members
has one. I could ask him his opinion, or maybe the club could have
a projector comparison evening. Hmmm...

Regards

Gary Nored


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