Mar 13 2011: I'm not an expert in any field, but one day I just had an idea of using Earths magnetic field as an alternative energy source. Even that it's weak I think using special magnets and magnetic shielding it might be possible to build these under every new house. Similar system as the wind energy mils have, based on rotation. And they might actually last decades without maintaining. Just a thought...
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A comment on Conversation: A conversation with GE: What are the best ideas for alternative energy management at home?