Solar Death Ray [RE-wrenches]

[Ray Walters]

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Hey Mark;

I've got a little presentation I do for kids classes sometimes. I use a 
parabolic reflector to set a 2x4 on fire, it definitely gets the point 
across. I thought I should warn you: kids that age will probably try and 
remove your box and stick their face in the focal point to "see" how it 
works. Always better to warn them before hand.
Wasn't another wrench talking about using multiple mirrors aimed at a 
"Target" kid for their demo? ......We Solar Dads can really get carried 
away.....

Ray


>The most important thing on an installation such as this is to install a 
>separate grounding electrode conductor and grounding equipment conductor.
>
>My 5th grade son recently got an assignment to make a solar reflector in a 
>shoe box.  We decided that just wasn't big enough so we made a parabolic 
>reflector about 4 ft in diameter using cardboard ribs cut in a parabolic 
>shape, aluminum foil as a reflector, and a clear plastic box at the focal 
>point.  That thing got seriously hot in no time.
>
>Mark
>Cobalt Power

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