If this is accurate, it's interesting: http://dornob.com/ultra-cool-3d-printed-bricks-can-cool-homes-using-no-power/ Sacie -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.bioenergylists.org/pipermail/greenbuilding_lists.bioenergylists.org/attachments/20150209/d8d4ae65/attachment.html>