You might be a customer for Bob Shaw's fictional 'slow glass': Travelling through a remote area, they find a place that sells panes of slow glass. This is glas

You might be a customer for Bob Shaw's fictional 'slow glass': Travelling through a remote area, they find a place that sells panes of slow glass. This is glass that light takes a long time to pass through, even years, so that a pane of this glass shows a scene from the past. People buy slow glass that has been placed in picturesque scenery so that later they can enjoy the view in their homes or workplaces. https://en.wikipedia.org/wiki/Light_of_Other_Days https://en.wikipedia.org/wiki/Light_of_Other_Days