[AT] OT: solar project

[John Wilkens]

Neat!  I guess I liked photo #20 the best.  If we run out of coal and 
gas before we get nuclear maybe we can at least brew a cup of coffee 
with your invention!    John W.


At 09:47 PM 05/03/2008, you wrote:
>Hi Folks,
>    Thanks for all the suggestions on the little solar project. Instead
>of a steam engine, I looked at my target audience... 12 year olds...
>and came up with a different solution to get their attention. We ended
>up making a hot dog cooker. The first shot at it used a hot dog in a
>wire mesh but the dog kept catching fire in the intense heat
>collected. I then opted for a copper tube painted black with water in
>it. This gives a very set peak temperature and by adding a thermometer
>the kids can see when dinner is done.
>
>here are some pix of the collector. There are several of it with the
>water at a full rolling boil. What you don't see is all the things we
>set on fire before we came up with this configuration.
>
>http://www.knierim.us/gallery/solar
>
>thanks again to all who contributed!
>
>Ken in AZ
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                    In the wide-open spaces of NE Oregon