This five minute talking head video shares some thoughts about ways of harvesting solar heat energy that would be more labor intensive than capital intensive. Created using OpenOffice Presentation program and Screenflow (a screencasting program for Macintosh computers.)
Interesting ideas.
AmHands 6 months ago
cool,,
thenatureway 2 years ago
Interesting ideas, Phil.
KenMiddletonUkulele 2 years ago