The insulated glass window is one of the most important components of modern life. On the one hand, it connects us with our environment by allowing us to see it, instead of a wall. On the other, it protects us from undesired environmental influences such as cold, heat or noise. Its transparency, thus, obscures the fact that insulating glass consists of a variety of materials, which only as a whole can satisfy the various demands of technical, highly complex end products. Each of these materials shows how it reacts once the product is assembled, whereby this reaction also always depends on how the raw materials were initially processed. And so glass too has a past life; everybody knows that luck and glass shatter easily, and luck can rust easily.... but what about glass? In this paper the author considers the possibilities.
