G
Guest
Guest
The salt of the earth now brings light to the world in more ways than one.
Salts Used for 24-Hour Solar Energy Generation : Read more
Salts Used for 24-Hour Solar Energy Generation : Read more
Oh, here is a patent that was filed in 2006 for the tech and I'm sure its older than that. http://www.freepatentsonline.com/7299633.html