 ... interesting report on this subject. He wrote : " I would mention a curious fact, in which the sunbeams have, if I may say so, done something in the art of penmanship; not only on the surface, but by inscribing characters through the body of the glass;...  Action of Sunlight on Glass - Seite 11von Thomas Gaffield - 1867 - 19 SeitenVollansicht - Über dieses Buch
 | 1874 - 806 Seiten
...Splittgerber recorded the following interesting fact in Poggendorf 's Annalen, published in Berlin : " I would mention a curious fact, in which the sunbeams...possession of a plate of glass which was used as a window-pane for more than twenty years, and on which was an inscription in gold letters. This inscription... | |
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