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Old 21-07-2005, 08:34 AM
slice of heaven
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slice of heaven is offline
 
Join Date: Mar 2005
Location: S.A.
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Heres a pic to show the difference


http://web.ask.com/fr?u=http%3A%2F%2...L3-24.HTML&mb=
Ask Jeeves Results - what are parabolic mirrors
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