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DIY Solar Tracking Parabolic Trough - Closeup

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A full day time lapse (1 pic every 60 seconds) close up of one of the collectors in the array. Around mid day it clouded over and looked like rain. The tracker wanders a bit but locks on again when the sun returns. For more information: http://www.ffwdm.com/solar/solar-index.htm George Plhak
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