This is a quickie post today, since I have some chores to attend to. It’s a development of some ideas that have been forming since posting Part 3 of my response to Thibault Heimburger’s critique of the scorch hypothesis. There I was modelling the effect of different degrees of applied force between heated template and linen. The more force, the larger the imprint left on the threads of the linen. The lightest force would scorch only the most superficial threads of the weave, while increasing force would tend to affect those
threads parts of the same thread that are less superficial where they loop down into the weave.
Here’s a screen grab from that previous psoting:
It’s a natural development to think that through in terms of the separate weft and warp threads, but since there is some controversy as to which is which in Shroud micrographs, see immediately preceding post, I am going to designate the two sets (mutually at right angles) simply as w1 and w2.
w2 is the thread that one sees in micrographs as passing over 3, then under 1, over 3, under 1 etc. w2 is the most superficial of the threads.
Note that the image intensity tends to be greater on the more superficial w2 threads than the “recessed” w1 – exactly what one expect from a contact scorch applied with light or moderate pressure that was insufficient to flatten/crush the weave.
Now let’s look at modelling the effect of light contact, one that scorches just the w2 threads, and then a greater impaction force that flattens the weave, making contact with recessed w1 threads, causing some additional light scorching of the latter while increasing the image intensity on the w2 threads.
I believe there is a means of testing the scorch hypothesis. It involves looking at as many photomicrographs of the Shroud image, comparing regions where the image intensity is large, e.g. the nose, chin, moustache etc, and comparing with parts where it is low, e.g. the peripheries of face, torso and limbs.
Prediction. In regions where the image intensity is high (due to greatest impaction force in the template model) there will be appreciable scorching of both w1 and w2 threads. In the regions with a fainter image, only the more superficial w2 threads will be scorched.
I do not think that a radiation model could make a similar prediction. Indeed, after Raymond N.Rogers, I do not consider that any radiation model can account for the preferential location of image on the most superficial threads, as apparent in the micrograph above, far less a a progressive shift towards w1 threads as well in the regions of higher image intensity.
Here’s a model that can be tested without needing access to the Shroud, merely access to the existing archive of photomicrographs (Mark Evans/STERA etc). But it does require access to the entire archive.
Are there any plans to release those archives soon, to allow researchers like myself to test their ideas?