tag:blogger.com,1999:blog-17555522.post7559810427867490879..comments2008-06-05T14:04:44.469-07:00bwhttp://www.blogger.com/profile/07541279438184352860noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-17555522.post-58285043947775393262008-06-05T13:42:00.000-07:002008-06-05T13:42:00.000-07:00Other additives might provide radiation shielding. I am curious as to whether something like cinder blocks be made airtight relatively easily or if habitats would require forms to be used for pouring? It will be interesting to see if some of the research into using scaled up 3D printing technology to automatically create buildings by extruding one level at a time would be usable in a lunar environment.Snake Oil Baronhttp://www.blogger.com/profile/14365352742028282744noreply@blogger.com