This battery charger was designed for NASA/ARMY
Charges 6 AA batteries in 15 minutes and weighs ONLY 50#
http://www.oanow.com/servlet/Satellite? ... cArticle&c
Cut and past link into browser window or better yet into "WORD" for an
The math is a bit short on accuracy, i.e. it "doesn't compute."
Discussion on Stirling or "hot air" engines (all types)
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