Re: medieval photography

Dan Shapiro (dan@good.stanford.edu)
Thu, 19 Oct 95 15:17:18 -0700

There were two other relevant bits in the broadcast... there is
apparently a book documenting their ideas (I tuned in after the title
was given), and the authors argued that the tablecloth predated Leonardo
because he was perpetrating a hoax and deliberately employed an antique
cloth for the photographic experiment. The discrepancy in dates wrt
carbon dating Leonardo and the cloth (separately) is c. 100 years, so I
gather.

The whole thing strikes me as a way for someone to make money by fanning
flames of a controversy/conspiracy theory. The part that
intrigued me was the suggestion of a medieval photography.

Does anyone have a recipe for making an albumen print, or a salt print
out of ingredients as basic as egg, salt, and urine? I'd love
to try it.

Dan Shapiro