August 14, 2009 by Suzanne Lasky An amazing residence designed in Japan that shows optimal use of passive solar building principles. http://ping.fm/pMI8J Share this:Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to email a link to a friend (Opens in new window)