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Mechanical mathematician for makeing parabola's

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Posted by brian on September 29, 2007, 7:48 pm
Just type in Mechanical Mathematician in a search engine to find out more.
http://www.youtube.com/profile?user=gaiatechnician  contains some video of me
kaning a 4 ft by 4 ft parabolic reflector with the mathematician.
I used (cob sand clay and straw mix) to make the parabolic dish.
You could probably easily use the mathematician for your parabolic trough
curves too. (Saves doing the math).
Brian White

Posted by brian on October 10, 2007, 3:48 am
http://www.earthtoys.com/emagazine.php?issue_number .10.01&article=cooker
is a much easier and simpler link to show how it works.

brian wrote:

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