The peer-reviewed journal of the Institute of Physics in
London, on April 14, 2004, announced that Giulio Fanti and Roberto Maggiolo,
both of the University of Padua, Italy, have found a second face image on the back of
the Shroud of Turin. This image (two contrasts shown) corresponds to the front image but is much
fainter. And this image, like the front image, is completely superficial to
the topmost crown fibers of the cloth.
Because both images are superficial (meaning there is no
image or colorant of any kind between the two image layers on the extreme
outer faces of the cloth) and because the
images are in registry with each other, all so-far-proposed fakery proposals
are moot. The images are not paintings and not some form of
medieval proto-photography.
The second face image does lend credence to the
possibilities that gaseous amines released by the body reacted with the
carbohydrate layers. Some gases would have penetrated through the weave of
the cloth and reacted with the backside carbohydrate layer. (And it does not
rule out miraculous cause or effect).