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Here's my coffee-cup stirling engine that I modified to run on the free energy of the sun!...
Simple solar Stirling engine with solar reflector...
http://mini-stirling.ecrater.com/ ((FREE SHIPPING)) & http://shop.ebay.com/ogalice/m.html?_nkw=&_armrs=1&_from=&_ipg=&a... The solar low temperature-differenti...
Please visit: http://a-vin.info/Solar It is important to implement the concepts mentioned in the book to save energy as well as money. There is about 200 years...