I googled a little on the invisibility cloak and found there are over 40 (!) teams in China working on variations of the concept. http://www.scmp.com/news/chin

I googled a little on the invisibility cloak and found there are over 40 (!) teams in China working on variations of the concept. http://www.scmp.com/news/china/article/1376652/chinese-scientists-upbeat-development-invisibility-cloak http://www.scmp.com/news/china/article/1376652/chinese-scien...