Looks like they are well on the way to making slow glass. http://www.dailymail.co.uk/news/article-2380028/Scientists-stop-light-completely-record-breaking-MINUTE-trapping-inside-crystal.html http://www.tor.com/blogs/2010/10/slow-glass-seen-from-all-around-bob-shaws-other-days-other-eyes Sandy WB5MMB