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Steven M. Johnson's idea for solar heating makes a lot of sense.

by LiveModern Webmaster last modified Apr 15, 2015 01:00 AM
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by Lloyd Alter last modified Apr 14, 2015

It's reminiscent of some other crackpot ideas from the seventies.




 

 

It's reminiscent of some other crackpot ideas from the seventies.

 

 

 
 
 

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