My solar prayer wheel.

PrayBot 2007 photo

PrayBot 2007 photo

go to link The finished unit, running on The Ithaca Commons. More photos are in the gallery.

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Solstice 2007 PrayBot 2007 photo

opcje binarne nauka For the Summer Solstice this year, I refined last year’s PrayBot project by making it more efficient and robust, and again had it running in our city center at noon. The weather cooperated, and so did the gadget, and the people were great. Success! follow link read more...

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PIC-based solar engine (PICSE) 2007 My PrayBot project last year needed a “solar engine,” and the quickest thing I could come up with was based on a PIC instead of the more usual BEAM-style solutions. This year I wanted something more efficient. But it still ended up with a PIC, and it’s much more efficient than any of the BEAM designs I’ve tried. read more...

PrayBot deployed

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enter With a few new ideas for the last mechanical bits having arrived during my shower this morning, and a subsequent frenzy of Dremeling and hot-glueing, the PrayBot was in place and functional for the start of Summer! watch read more...