Invisibility cloak uses 'metamaterial' to hide three-dimensional objects - CSMonitor.com

http://www.csmonitor.com/Science/2012/0126/Invisibility-cloak-uses-metamaterial-to-hide-three-dimensional-objects?nav=447812-csm_blog_post-leftColRelated

Sketches from scratches:  http://Woohs.blogspot.com