[Joyce Rops (OP)]

I am currently reading a book called ''I am Pilgrim''. In the book they try and succeed in developing mirrors just like you would develop a photo. The story is that there was a really bright flash from exploding magnesium and that the silver nitrate in the mirror captured a picture of the room it was facing. Is that actually possible? Especially since the mirrors were really old I wonder if daylight wouldn't have made the silver nitrate inactive?

[Colin2B]

This is being discussed here http://www.thenakedscientists.com/forum/index.php?topic=66485.0