Slow glass at last! Bob Shaw's The light of other days http://en.wikipedia.org/wiki/Slow_light#Slow_light_in_fiction http://en.wikipedia.org/wiki/Slow_light#Sl

Slow glass at last! Bob Shaw's The light of other days http://en.wikipedia.org/wiki/Slow_light#Slow_light_in_fiction http://en.wikipedia.org/wiki/Slow_light#Slow_light_in_fictio...