Sunday, March 28, 2010

http://www.motherearthnews.com/Renewable-Energy/1977-07-01/Harness-Hydro-Power-with-a-Trompe.aspx

http://permaculturetokyo.blogspot.com/2006/11/passive-cooling.html
Posted by at
Labels:

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)