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At 03:06 22/02/2007, Janine Prillaman wrote:

>You can find small solar ovens for sale and have the visitors cook something
>or check the temperature.  I am not sure who sells them, but I have seen the
>demonstation using hotdogs.

Here's how you can run a workshop with school classes or science 
centre visitors easily making their own solar sausage cookers. I've 
published my own 'Silver Flower' solar cooker invention as a 
downloadable PDF file. It includes a cut-out template and full 
instructions and is free of charge.

There is a download link on this page.

http://www.interactives.co.uk/minds_workshops_solar.htm

To make it, you just use my template to cut out six 'petal' shapes 
from shiny, foil-covered cardboard, then join them together at the 
marked positions using split metal paper fasteners. I calculated the 
joining positions very carefully so the cardboard reflectors are 
pulled together into a dished shape. A wooden 'stem' is attached to 
this silver flower shape and pushed into the ground with the 
reflector aimed at the sun.


[log in to unmask] * http://www.interactives.co.uk
*
Give people facts and you feed their minds for an hour.
Awaken curiosity and they feed their own minds for a lifetime.
*
Ian Russell 

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