Solar Pioneer's Forgotten Invention
November 13, 2007
Four decades ago, Harold Hay invented a way to heat and cool a home without using electricy. Why won't the world listen?
By Elizabeth Douglass, Los Angeles Times Staff Writer
Full Story: http://www.latimes.com/news/science/environment/la-fi-haroldhay10nov10,1,6391912,full.story?ctrack=2&cset=true