Showing posts with label medieval forgery. Show all posts
Showing posts with label medieval forgery. Show all posts

Saturday, February 11, 2017

Quote: "The evidence is OVERWHELMING that the Turin Shroud is authentic!"

Or so says Perth-based Stephen E. Jones on his (dare one say) rabidly pro-authenticity blog site.

Here's a comment that I've just posted to that site. It's "awaiting moderation".  I don't expect it to appear (none of the occasional ones sent these last 5 years have done so).

Evidence for authenticity "overwhelming"? Nothing could be further from the truth. The evidence in fact is paltry and usually circumstantial, and even then, inconsistent and fragmentary.
 The radiocarbon date coincides with the first appearance of the TWO-FOLD, HEAD-To-HEAD image seen on the Lirey badge, whose date is self-evident from the De Charny coats-of-arms. All that is missing is a coherent narrative for the history and motivation, and one that accounts for what otherwise might seem enigmatic features - but which aren't in reality, once one has torn oneself away from the authenticity narrative.
This investigator has supplied the missing narrative, based on 5 years research and the resulting 'Model 10'. i.e. flour imprinting/thermal development/final water-washing.

The motivation? To simulate what a body imprint in sweat and blood onto Joseph of Arimathea's fine linen might look like 13 centuries later, acquired during TRANSPORT from cross to tomb. The TS was intended to be a whole-body rival to the then-celebrated Veil of Veronica, while based on broadly the same principles of image-acquisition. The negative image, 3D properties etc are exactly what one would expect from a contact image obtained with white flour onto wet linen, as I have repeatedly demonstrated these last 18 months, using 3D figurines as well as my own hand and face.

"Overwhelming" evidence for authenticity you say, when there's a rival narrative that ticks far more boxes?  How much longer are you prepared to blind yourself and others to the progress of science?

One could say more, much more about the tunnel vision of the pro-authenticity 'sindonological' mindset, one that will not admit, far less consider contrary thinking, or even acknowledge its existence on their tub-thumping websites.

 Such is the way of the world. The world that is intolerant of ideas contrary to one's own. The world that uses the internet to proselytize one's intolerant viewpoint.

Update: Tuesday 11th April: See my latest posting - a work in progress- on my specialist Shroud site:

STURP: Space-age Technology Unleashes Religious Propaganda

***********************************************************
Update: Saturday 29th April: here's a copy of my 'cold call' request sent yesterday to the Quekett Microscopical Club  (it has a page on its site  - see link below- for those wishing to make contact).


Hello all you splendid Queketteers, amateurs and pros alike!

Is there anyone here among you interested  in the Turin Shroud?  I refer in particular to the ongoing problem as to how it acquired its faint allegedly enigmatic body image (negative, 3D properties, peculiar microscopic properties - like the so-called half-tone effect, colour discontinuities etc)?
Rarely a month goes by without some new mind-blowing scenario - pulsed laser beams, earthquakes, nuclear radiation, Da Vinci dabbling with proto-photography etc etc.

I've been attempting to model the Shroud image for some 5 years, and have settled on what I call Model 10, aka the roasted flour imprint. Yes, it's mundane alongside the ones just listed, but there you go, that's science bizz.

(Smear back of hand with vegetable oil, sprinkle with plain white flour from above, shake off excess flour, drape wet linen over flour-dusted hand, press linen firmly to capture a flour-imprint, suspend linen in oven, roast (approx 180-200 C)  till the imprint turns yellow or brown, wash vigorously to remove surface encrustation of Maillard browning products,  to be left with an 'enigmatic'  faint sepia stain - a negative image of one's hand  and fingers that gives a 3D response in ImageJ).

It's the microscopy that proving the problem - the cylindrical 3Dness of linen fibres, their light-refracting properties. Having a bargain-basement microscope that relies on a web cam to capture (blurred!) images on a laptop screen does not help either.

There are two possible solutions:
1. Invest in a better DIY microscope, hoping someone here can give expert advice
2. Seek one or more collaborators who's interested in the Shroud, and willing to be supplied with my Model 10 fibres, maybe with a view to submitting a joint publication to Quekett's own peer-reviewed journal.

I think my Model 10 is the answer, confirming medieval manufacture in accordance with the radiocarbon dating  (1260-1390) but if the image fibres fail to match up to the microscopic properties described by STURP and other investigators, then I'm willing to publically concede defeat (that being an occupational hazard of being a scientist, in this instance long-retired).

Here's a link to my specialist Shroud site:

and to one in particular (Sat July 1, 2017) hat addresses the issue of the "second face", arguably the last of the so-called enigmatic properties to be successfully reproduced by this long-term investigator:

My Model 10 – thermal imprinting with moist white medieval flour – can account for ALL the so-called enigmatic properties of the Turin Shroud


See also the recent thread on the International Skeptics Forum, where I participated as "meccanoman".


Colin Berry (PhD)

Saturday, June 20, 2015

A new and simple thermal imprinting model for the Turin Shroud needing only plain white flour and a hot iron - in 12 pictures.

1. Make a thin slurry of plain white flour with cold water.
2.Paint skin with slurry
3. Drape linen over coated skin
4. Gently pat linen to mould to contours.
5. Peel back linen. Flour imprint scarcely visible at this stage.
6. But most of the slurry transfers to the linen, being sticky.
7. Press with hot iron on opposite side from imprint (highest temperature setting) on part of the flour imprint. Leave one side cold as control.
8. Result - a faint image, reminiscent of the Turin Shroud.
9. Is the image wash-resistant? Detach a test portion (right)
10.The imprint withstood 15 minutes immersion in cold water
11. Would it withstand washing with soap?
12. Answer - yes, though a little fainter.

This is very simple technology, needless to say, requiring only plain flour and a hot flat iron (smoothing irons must surely have existed in the 14th century, when the Shroud of Turin was first put on public display (Lirey, France, circa 1357).

Regardless of authenticity, this simple demonstration is my answer to those investigators in Italy and elsewhere who claim that the image of Shroud of Turin can never be reproduced under laboratory conditions. It CAN be reproduced, at least as regards macroscopic aspects, in one's own home living room. Microscopic characteristics need further investigation.



Update: Sunday 21 June

Mechanism of enhanced browning in image zone? Presumably a non-enzymatic Maillard browning reaction between reducing sugars and proteins.

 reducing sugars + protein (or free amino acids etc)  ->  complex mix of yellow melanoidins

(The reducing sugars provide reactive carbonyl groups , the protein etc provides reactive amino groups)

But there are 3 combinations that will need to be considered  that are not mutually exclusive, i.e. two or more may be operating simultaneously:

 Reducing sugar (white flour) reacting at high temperature with protein/amino acids (linen fibres)
 Reducing sugar (white flour) reacting at high temperature with protein/amino acids (white flour)
 Reducing sugar (linen fibres) reacting at high temperature with protein/amino acids (white flour)

The fourth combination,  i.e. reducing sugar (linen fibres)/protein/amino acids (linen fibres), is not listed since that would account only for the slight "scorching" of background linen one sees outside the image areas, i.e. background coloration.


There is also the possibility that proteins are not involved, that the tan coloured image is the result of pyrolysis (aka caramelisation) reactions involving carbohydrates only. Expect to see a postscript here shortly (a few days at most) on the effect of replacing whole white flour with gluten-free starch. The latter will use starch granules isolated from white flour by water-washing and sedimentation, as described in an earlier post here in which nitric acid was used for  colour development of the primary imprint, dubbed the "stick 'n' stain" variant of the generic 2-stage imprinting/developing model.


Speaking of which, nitric acid that is, which was the first means of Stage 2 colour development to be reported on this site, its use is emblazoned on the banner of this blogger's specialist Shroud site., despite being a vicious corrosive reagent towards human flesh,.

Present banner (June 2015) on my shroudofturinwithoutallthehype.com site


 But which of the two chief variants of 2-stage imprinting (3 if one counts the promising results with hot limewater) would medieval forgers have been more likely to use:(a)  the use of a hot smoothing iron, as described here, or (b) exposure to nitric acid vapour or solution?

Is the hot iron (or maybe an oven roasting) more likely than treatment with a novelty chemical reagent that was probably little known in the 14th century outside of alchemists' secretive laboratories? Do I need to substitute a collage showing the steps in this posting for the one you see above, if only to flag up the variant that is more user-friendly, i.e. safer to deploy in one's own 21st century home should any readers be minded to check out the claims made here?

I shall make the collage, but may not replace the present one immediately. Better maybe to hold fire on whether the putative forger of the Turin Shroud was more physically or chemically minded. (He did not need to know the chemistry of Maillard reactions to make an educated guess that a hot iron would  scorch a flour imprint more readily than the linen on which it was deposited). (Afterthought: I could make a twin-collage, showing both the "iron" versus "non-iron" method. There's no need to make an instant decision as to which was more probable in the mid-14th century.)

But there again, our medieval forgers, even if alchemist- (aka proto-chemist)- assisted, did not need to know the molecular mechanism as to how nitric acid reacts with proteins to give a yellow colour (xanthoproteic reaction). All they needed to know was its reputation for staining skin yellow, and then have seized on that as a way of simulating an ancient  then 1300 year old whole body imprint (as sweat) by imprinting with ANY convenient organic substance - a proxy for sweat - and developing chemically with any reagent that might turn it a permanent non-fading yellow.

Here's a link to a site on the history of ironing. It's not entirely clear when the box iron, loaded with hot charcoal, first put in an appearance (one trusts they knew to keep the windows open, to avoid deadly carbon monoxide poisoning).

Box irons are still used to this day, e.g. in India:

Box iron with lid raised to show smoking hot charcoal

 Might there not have been a risk of getting red hot embers onto one's prize linen? Is anyone thinking what I'm thinking. Yes, those "L-shaped poker holes".



Source acknowledged(with Autocorrect in MS Picture Manager): http://theshroudofturin.blogspot.co.uk/2013/03/the-shroud-of-turin-26-other-marks-2.html
Were they incorporated right from the start  - when the TS image was created, using a box-iron to develop the colour? If so, then from the symmetry, the linen would have been folded in 4 - lengthwise then width-wise (see above link). It's not impossible that the linen would have been folded before 2nd stage thermal development. Indeed, that might provide an explanation for the divider-like faint longitudinal and transverse 'seams' one sees, somewhat paler than the rest of the body image or background regions.

Later thoughts:  prompted by the result of the wash tests with water then soap/water, one could hypothesize/rationalize as follows. When the imprint is heated with the iron, there are two distinct Maillard reactions - one with the flour "impurity layer" and one with the linen itself, each providing carbohydrate, protein or both. It's the browned coating with its Maillard/caramelized products that washes off with soap and water, but those associated with the linen fibres stay put. It is presumably the latter we see today in the faint, scarcely visible image. Originally, the image would have been more intense, due to the impurity derived carbohydrate and/or protein. For Charles Freeman to claim as he does that investigators have totally ignored image degradation over the centuries (to sustain his scientifically-bankrupt line that the TS is  'just a painting')  is not only wrong. It is insulting. Maybe if he took the time to read the scientific literature, instead of dismissing scientists as art history philistines, which they may or may not be (it being of little consequence and probably irrelevant where the enigmatic TS negative imprints is concerned) he would see that image degradation is something that always has to be factored into everyone's thinking, and indeed is and has been, whether formally acknowledged or not, at least where this investigator is concerned. The man is way, way out of his depth in attempting to brush aside decades of detailed scientific investigation that shows the TS image is UNIQUE, and cannot therefore be subsumed into art history, least of all when that requires the qualifying assumption (read fix) that the original artist's pigment have (conveniently) detached leaving no trace of their original presence, merely an unexplained negative image (which Freeman mistook at least initially to mean left-right reversed, as in a mirror image).  Forgive my saying Charles, but you're an incorrigible time waster.

 Update: 21 June

Have separated starch from gluten, and tested them singly and in combination with a hot iron. No obvious browning reactions were seen.  It might be soluble flour proteins that are needed for a Maillard reaction (gluten protein is highly insoluble, which explains why it's so easy to separate from starch granules, simply by washing out the latter from a stiff dough with water). Soluble reducing sugars of flour may also be needed, with intact starch not substituting, even at high temperature.While it's of interest scientifically to understand the chemistry, in particular to confirm or disprove the presumed Maillard reaction, ignorance of the precise chemistry does not detract from the hypothesis proposed, namely that the TS image was formed by a browning reaction in an extraneous organic material imprinted onto linen, probably flour glue (its adhesive properties making it an imprinting medium par excellence).

Update 22 June

Here's a headline that appeared in yesterday's Daily Mail (or Daily Wail as some prefer to call it!).


Note there was an estimable 127 comments when I did that screenshot a few minutes ago. Some of them are mine (as Colin Steven, the first two thirds of this blogger's full name). Began with a brief plug for the latest 'hot iron' model, it being simplicity itself, though the Mail does not as I recall permit links so I chose not to risk it. Got into a quite upmarket discussion (for the hard-bitten, don't-give-me-that-bullsh*t  regular clientele of the Mail that is) with one "Birchy of Blackburn" who says he knows this blogger from "Mr. Porter's site". Has he left comments there one wonders? Can't say as I recall input from the north of England.

Thank goodness those green up-vote arrows and red down-vote arrows of the Mail are not copied more extensively. They seem to bring out the worst in people. I much prefer systems like Disqus, where a down-vote simply reduces the tally of up-votes.

Speaking of which (Disqus) here's an opportunist comment placed just a minute ago on the Disqus-hosted Telegraph:


The Pope joins the EU in a sad world of make-believe

ColinB

























ColinB 9 minutes ago 
 

Title: "The Pope" ... "sad world of make believe".
Fiddlesticks. For one moment I thought that might be a reference to his paying homage to the Shroud of Turin, allowing one shamelessly to plug (without splitting an infinitive) the latest Blue Peter* "Make Your Own Turin Shroud" shamelessly immodest breakthrough discovery. (Link to this posting).

Simply paint a gluey cold water slurry of plain white flour onto one's 3D subject - whether a real person or a bas relief (probably the latter for the face), imprint onto linen, then press the dried imprint with a really hot iron (linen setting). Hey presto, one gets a negative sepia-coloured Shroud-like image of one's subject.Nope, it won't wash out, so may well be permanent. It may even display those 'mysterious' 3D properties if you use dowloadable software (ImageJ etc) that excels in finding "3D" wherever there's tonal contrast in one's 2D image.



Yup, strictly for home (UK) consumption, I call it the Blue Peter model, it being one you can try at home.

"Here's one we made earlier"


Next experiment: the face/head is the major problem as regards contact imprinting. Luigi Garlaschelli said as much, and considered that a bas relief was needed in place of a real face. But why? Most of the face is fairly flat relief, except for (a) the nose and (b) the eye hollows. That's provided one has made a decision NOT to imprint the sides of the face, so as to avoid lateral distortion. It is a simple matter to imprint off the highest relief, simply by patting the linen vertically downwards against 3D relief, never sideways.

Is it mainly the nose that is the problem? What kind of imprint might one obtain if an imprint were taken with linen that had a cut-out, allowing the nose to protrude/poke through? It's a purely theoretical exercise of course, designed to see if the nose is the major problem, and seeing what kind of contact image is obtainable if the nose is prevented from causing too much deformity in the linen.

It was quite difficult to see any 3D imaging of the nose using ImageJ in its Thermal LUT mode. That might be telling  us something (like the substitution of a more forger-friendly bas relief for a real face?)

I shall also try imprinting crossed hands as per Shroud.. There's a simple explanation for why the thumbs are missing.  Try crossing your own hands, dear reader, as per Shroud, in such a way as to lock them together, to prevent one sliding on the other.  Where's the best place to put the thumbs? The 'thumbless' hands may be prima facie evidence for imprinting off a LIVE cooperative subject who's been told to maintain a fixed immobile position  (as if deceased) while imprinting is in progress.

Update Tuesday June 23

Yes those are the next two mini-projects - modelling the crossed hands and "noseless " face, in that order.


The image on the left are the crossed hands one sees with Shroud Scope (Durante, 2002 with added contrast). At first sight it looks as if the subject's right hand is crossed over his left, partly obscuring the latter. But it's an imprint which creates a mirror image (left-right reversed). The image on the right shows how the subject would have looked had one seen him with one's own eyes and/or taken a photograph. So that is the configuration that I (or my partner) will have to adopt prior to pasting with flour glue, draping with linen and then imprinting: left hand will be placed over right. The thumb of the left hand will be slipped out of sight behind the wrist of the right hand, serving as an anti-slide lock (see earlier) so will escape being imaged. Likewise the thumb of the right hand -  which will simply be kept out of sight by hiding behind the fingers of the same hand. Yes, those "missing thumbs" are easily accounted for in a contact imprinting model. Why might a forger not want thumbs "in the picture"? Easy. Look at one's own hand. The thumb is not in the same plane as the fingers, being rotated at almost 90 degrees out of plane.  It also occupies a lower horizontal plane than the fingers unless the hand is pressed flat  against a hard surface. Any attempt to imprint the thumbs risks producing a result that looks a bit "wrong" as an imprint, even if anatomically correct. Solution: tuck the thumbs out of sight, so they don't get imprinted. Summary: left hand will be crossed over right, then the two coated with flour paste. Linen will be draped over and patted gently, with no attempt to imprint right into the junction of the two hands, thereby achieving that gap in the image where the linen has bridged the step between higher and lower levels. I may even place a small  adhesive pad  at the approximate site one would expect a nail to be used if through the palm rather than wrist to see where it appears as a dimple on the imprinted image.

Afterthought: one does not wait for one's partner to be free if one imprints in "LUWU" instead of normal "LOTTO" presentation. LUWU (Linen Underneath With Underlay) is where the linen is draped over something soft, like several thicknesses of bath towel, and the "subject" pressed into it from above. That can be done solo to get a quickie result. What's more it's more likely to have gaps in the image due to bridging across steps in level, because there's no means of manually moulding linen to contours unless in LOTTO mode (Linen On Top, Then Overlay).
 Preliminary result: will appear here shortly.


Flour imprint of my own crossed hands, LUWU mode, before and after photo-enhancement.


The image on the left is the as-is imprint ( no photediting) that stubbornly remained after (a) thorough rinsing and kneading with cold water (b) vigorous brushing of surface with a tiff-bristle toothbrush (c) application of soap and water. In other words, the image, while very faint (as per Turin Shroud!) is one that might still be there in years, decades, mainly longer. The image on the right is the same, after applying my favourite settings in Microsoft Office Picture Manager (mainly an increase in contrast, with minor adjustment to brightness and midtone setting). Note the missing region (as per Shroud!) where the linen has bridged the height-difference between upper and lower hand.

Negative aspects: there is excessive lateral distortion, an effect no doubt of employing the LUWU imprinting mode with too soft and underlay, causing too much contact between linen and the sides of the wrist etc. That can be easily remedied by switching to LOTTO mode (tomorrow), using manual moulding. My wife has agreed to be the subject, but that will require hands folded in the opposite configuration (right over left) to avoid contact between flour paste and rings!.

Update: Have been accused of trolling for the first of 5 comments placed on a Christopher Booker thread in the Telegraph (currently 6737 comments in total!).

Judge for yourselves dear reader whether this blogger is a troll. Here are ALL my comments to that thread in chronological order. That's not counting the hundreds I used to send to the Telegraph some 2-4 years ago on the topic of climate change when it was a main interest.

Methinks there's a certain blogmeister in South Carolina, USA who needs to lighten up. He also needs to stop using that obsessional single-issue site of his to snipe and make wholly unjustified character attacks.

The Pope joins the EU in a sad world of make-believe

 
Title: "The Pope" ... "sad world of make believe".
Fiddlesticks. For one moment I thought that might be a reference to his paying homage to the Shroud of Turin, allowing one shamelessly to plug (without splitting an infinitive) the latest Blue Peter "Make Your Own Turin Shroud" shamelessly immodest breakthrough discovery.

(Link to this site).

Simply paint a gluey cold water slurry of plain white flour onto one's 3D subject - whether a real person or a bas relief (probably the latter for the face), imprint onto linen, then press the dried imprint with a really hot iron (linen setting). Hey presto, one gets a negative sepia-coloured Shroud-like image of one's subject. Nope, it won't wash out, so may well be permanent. It may even display those 'mysterious' 3D properties if you use dowloadable software (ImageJ etc) that excels in finding "3D" wherever there's tonal contrast in one's 2D image.















ColinB to Starland sound a day ago 
 

Seems there's been an awful lot of going up - right from the time when CO2 records began, without a single break in the upward trend. Guess we'll just have to be patient and wait for it suddenly to start zig-zagging, and then collapse back again, as you seem to be optimistically forecasting. Ah, those confident forecasts. Seems they exist on both sides of the argument.
















ColinB to SuffolkBoy a day ago 
 

You surely don't think there could have been that amount of fluctuation in the 19th century CO2 levels, i.e. in different parts of the globe, in different years, so as to make the average the same or even higher than today's?
If the state-of-the-art measurements we get today show consistent values centred around 0.039% (? adjusted for geographical location, seasonal effects etc, proximity to volcanoes etc) that are consistently nudging upwards year-on-year then some might think it's scarcely possibly that levels were yo-yoying wildly as your cited chart suggests when Trollope or Dickens were writing their novels, and went on doing so right through to the sudden stabilizing effect of 'Love Me Do' and the Merseybeat.

















ColinB to SuffolkBoy a day ago 
 

Thanks for the clarification. I checked your link. It's a snapshot of course, with a relatively narrow time window - 6 weeks- with most of the extra CO2 coming from south of the equator. Reasons? Maybe biodegrading of old roots and foliage before new growth and/or rainy seasons get underway. Am not sure. But the pattern on that chart is a result, needless to say, of unequal heating of the Earth's surface and the seasonal effects due to the Earth's axis being tilted relative to its plane of rotation about the Sun. Those same effects create climate but also weather of course, i.e. cyclonic updraughts in the tropics, anti cyclonic down-draughts in the more temperate regions, all helping to even out and eventually equalizing the localized excess or deficit of CO2 relative to the global mean. Moral: beware snapshots, even those on 6 weeks long exposure if discussing weather and/or climate. Best to focus on annual averages, where the CO2 chart is a smooth consistently upwards curve, not the sawtooth one we see in plots of month-by-month values.
















ColinB a day ago 
 

AGW or not? Here we have a supra-scientific, quasi-theological conundrum, one that is setting one Homo interneticus at the throat of another. But there are far more important issues (well, immediate ones) that need our attention, like external threats to our polity and way of life. Sorry, grandchildren, you'll have to wait your turn in the queue.
We need the equivalent of the First Council of Nicea urgently to thrash out the issues, to adjudicate, and then rule on what's a heresy (or at any rate, a sterile tail-chasing exercise that helps no one) and what's orthodoxy.
Or there again, we could compromise (old English pastime). Let's watch closely what happens to the ice in the Arctic and Antarctic. If there's progressive melting, regardless of what happens to air or sea temperature, then we can conclude the planet is warming dangerously, and take no chances with those GHGs . Get those solar panels installed and quick.
If on the other hand the ice cover were to remain the same, give or take a few good years and bad years, then let's discuss other more important issues affecting our security and welfare, like, say, the current visa-free mass migration via overloaded vessel from Africa into Europe, the progressive sovietization of the eurozone, the imminent incorporation of Greece into the Russian sphere of influence...

Today, I've put up another 7 or so comments on an entirely different topic, but not a single plug anywhere to my new Shroud model. That trolling must have been a passing phase...

Middle-lane hogging is a dangerous act of wilful stupidity


Further update: 21:10  June 23

This comment has just appeared on the shroudstory site from Thibault Heimburger MD.


in response to Dan:

From Colin in “the Telegraph”: “Simply paint a gluey cold water slurry of plain white flour onto one’s 3D subject – whether a real person or a bas relief (probably the latter for the face), imprint onto linen, then press the dried imprint with a really hot iron (linen setting). Hey presto, one gets a negative sepia-coloured Shroud-like image of one’s subject. Nope, it won’t wash out, so may well be permanent. It may even display those ‘mysterious’ 3D properties if you use downloadable software (ImageJ etc) that excels in finding “3D” wherever there’s tonal contrast in one’s 2D image.”

Colin seems to be a very strange person.
Here and on his own blog he looks like a true scientist.
Now, in “the Telegraph” (!!), we have the very simple final answer.
No Colin, your results have nothing to do with the TS image properties.
Is Colin serious or not ?

Yes, Colin is serious, even when he writes to the Telegraph. TH may not be aware, that this blogger has a long association with the Telegraph. It was at a Telegraph/E.on -sponsored BrainsTrust ("Talking Energy") that he got to meet and talk to Sir David King, UK's Chief Scientific Adviser and other influential policy makers on various matters to do with Green initiatives. I'll see if I can find some links (from 5 or 6 years ago).  Yup, here's something unearthed from from the sciencebod archives.


Daily Telegraph Jan 2, 2010


Close-up. lower right. That's your host, who was invited to pen 10 weekly blogs for the main newspaper, and then invited to put the first question to the expert panel.



l.
And yes, Colin is deadly serious about the new simple two-stage imprinting process. It may not have used white flour (which incidentally was available to the well-off in medieval times, being simple to make in principle by sieving stone-ground wholemeal flour) and it may not have used a hot iron, or nitric acid or limewater for Stage 2 colour development. But I do maintain with a high degree of certainty that the image was produced by a two stage imprinting/colour development that resulted in the image appearing to be intrinsic to the linen fibres themselves, whether that is or is not the case. In fact, the fibres from the latest experiment above could serve as a handy model system for investigating that very question, with a view to applying them to the Shroud itself.  So far, I've avoided speculation as to what remains after the washing procedures described - whether it's still modified flour components, modified linen fibres, or a mixture of both.  Researching the TS image has to be a slow and methodical trial-and-error process, given we have no clues whatsoever as to the processes that took place to produce that image. The STURP findings tell us next to nothing about the chemical make-up of the image layer. Thibault Heimburger, sad to say, is not part of the solution. He is part of the problem, being relentlessly negative and non-constructive in his never-ending stream of dismissive observations.

Update: Wed 24 June

Have posted this to the article by Michael Fabricant, MP for Lichfield: entitled "The EU referendunm is a race against time"






"Just a few days ago, an Ipsos MORI poll – if you believe any poll since May 7 – reported that 66 per cent would vote to stay in the EU and only 22 per cent would vote to leave."

Where on earth did the writer get that figure? At the DT's recently updated poll (see link to the Ipsos Mori chart) the gap has narrowed to 55% IN and 45% OUT. What's more the two plot lines are converging!

PS The same chart is at the end of the article. Hover one's pointer over the latest portion to get the actual figures I quoted.

Further postscript (IMPORTANT!): there's something not quite right about the DT's chart. If one moves the pointer slightly, one finds there are TWO snapshot polls given for June 2015, with a big difference between the two. Michael Fabricant MP (who penned this article) has quoted the earlier of the two values, which are those put out recently by the pollsters themselves.
https://www.ipsos-mori.com/res...

Either there's been a mistake in plotting out the IpsosMori data, OR, opinion is shifting rapidly towards OUT, and IM knows that, explaining why there are now two quite different results for June 2015. OK, so opinion polls can be misleading, as shown by the GE results, but there's no need to make them any more misleading than they already are by quoting out-of-date results when things are in a state of rapid flux.

Further update (last on this posting): with help from my wife, yesterday's experiment has been done, but in LOTTO mode(so far at Stage 1 imprint only) I decided finally to use my hands  as the "subject", having tutored my assistant in correct patting technique, use of my camera etc, in the course of which a sudden thought occurred to me which should have come sooner: the way to avoid lateral distortion in this technique is to apply paste only to those parts one wants to be imaged. That way, it doesn't matter if one's assistant is overzealous, gets pat-happy, straying round those forbidden sides! Result,assuming the result is not a total disaster, will be reported on the next posting.

Successful result - a good set of photographs. Draft title for next posting:



Man on the Turin Shroud:  the mystery may finally be solved - at least in principle.

Wednesday, May 20, 2015

Where does blood fit into the new two-stage medieval forgery model of the Turin Shroud?

First, here's a commercial for my other specialist Shroud site. I have changed the banner. The previous one showed steps in a one-step thermal imprinting ("scorch") model- from template to negative image to tone-reversed positive to the final 3D-enhanced image. There wasn't space to do all of that with the new model. It simply shows key steps leading up  to the primary negative image, and even then there's only space to show half the final imaged hand (my own).

New banner on my shroudofturinwithoutallthehype website. Click to enlarge.


However, rest assured that the image produced with the two step procedure (imprinting with flour/water, then developing the image with nitric acid) does respond reasonably well to Secondo Pia style tone-reversal (negative to positive) and to 3D  rendering in ImageJ (see previous posting).

Some have noted that I've said little about bloodstains in the new model. I don't intend to, considering that blood (or should that be "blood", i.e. some kind of blood substitute?) while showing some curious and perhaps unexplained details is not one of the 'enigmatic' features of the Turin Shroud, the latter being confined to the faint body image. (It cannot be said too often that the so-called "wounds" and "injuries" on the TS are NOT visible in the body image per se, but merely INFERRED from the locations of bloodstains. What's more, that's true also for the dumbbell-shaped imprints of many of the scourge marks: they are imprints made by trace amounts of blood only. They lack scientific corroboration and thus verification in the body image as regards proving authenticity. (But then, this blogger's aim is not, and never has been, to disprove authenticity - merely to pour cold water on the daft claims - from self-styled "scientists" no less - that the TS body image could never have been generated except by supernatural means).

What any model has to explain is why there is no body image under bloodstains, at least according to the crucial test that Adler and Heller did with their protein-digesting enzyme under the microscope. (One would have preferred more direct evidence that the blood is underneath, not on top of body image - the latter being a more convenient geometry from a forger's point of view- but let's take that particular  Adler/Heller result at face value, even if remaining unwilling to do so in respect of all their results - notably their scarcely-credible  "bilirubin story").

The new model accommodates the 'blood-first, image second' chronology.  One applies the imprinting medium first to the human subject, then, before it's had time to dry, one paints or dribbles on the blood. One then imprints onto linen. The blood is the first of the two liquids to make contact with linen, so there will be no body image under blood. Indeed body image will end up on top of blood.

But is that scenario necessarily the one that was deployed, with its rather demanding time-frame, inasmuch as blood, with all those intricate patterns, has to be applied before the imprinting paste dries and becomes useless for imprinting? Answer: NO. In fact, it's through a consideration of the practical constraints on a 'conjoint' imprinting of blood and body image that some tantalizing alternative scenarios suggest themselves. They will now be briefly flagged up.

In fact, let's cut to the chase with the new thinking. Here goes. The Turin Shroud was not intended originally to be a blood AND body imprint forgery, only a blood one. In other words, it was intended originally to be a whole-body counterpart of the Sudarium of Oviedo, the latter being the alleged face-cloth that was applied to the face of Jesus immediately after death on the cross, with bloodstains but NO body image.

How might that blood-only imprint have been obtained? Answer: by applying blood to a live volunteer (or corpse) in all the biblically-correct locations for scourge marks, crown of thorns, nails in hands and feet, lance wound in side, then taking a double (frontal v dorsal) imprint onto linen.


Map of locations of 372 scourge marks according to Faccini and Fanti*
 *Link to their pdf

 Straightaway one sees a rationale for scourge mark 'over-kill' (there being allegedly 372 of them): without that multitude of scourge marks that cover most of the naked body from chest and shoulders to foot, there would be large empty areas on the imprint.


From a posting this blogger did some 3 years* ago, showing how scourge marks on the Shroud respond to 3D-enhancement in ImageJ, despite being blood-only (not body image)
 * Link to June 2012 posting


One also has a rationale for the absence of loin cloth, otherwise problematical in terms of artistic sensibilities. Folded hands over groin area AND a multitude of scourge marks across bare buttocks helped ameliorate that problem.

A Mark 1 (blood only) length of linen could have been conceptualized, and indeed promoted, as the actual one that was used to transport the crucified Jesus from  cross to nearby rock tomb by Joseph of Arimathea (not intended as final burial shroud note). For all one knows, that blood-only forgery might have been stored for a period, weeks, months, maybe longer,  giving blood plenty of time to set hard and oxidize. Might a new idea have entered the heads of our forgers. Why stop there? Why not call the volunteer back for a second imprinting on top of the blood of something that could be claimed to be body image, created by drying  and yellowing of ancient SWEAT?

How practical is that one may ask: to imprint with "sweat" in a second entirely independent session introduced as an afterthought? Answer: probably not too difficult. Why not? Because the task of correctly aligning blood-stained linen over a flour-pasted body would be much simplified by the fact that the initial blood penetrates the weave of the linen to give a reverse side imprint. That reverse-side blood can then be used to assist with alignment. By the same token, some small discrepancies are likely, as indeed is the case with the TS. Was that blood from a nail wound really mean to be in the wrist (which while mechanically-correct had not featured previously in Western art)? Was there really supposed to be blood trails in the hair, a dubious feature, given blood from scalp wounds tends to clog and create matted hair, not run in rivulets)? Was the blood initially applied to the cheek of the volunteer? Are blood and bosy images out of 'stereo-register', as pro-authenticists have claimed to counter criticism of unrealistic blood trails down hair. Or are these the clues to separate imprinting of blood and body image - in that order?

Is there hard evidence for the Mark 1/Mark 2 chronology suggested, with an indeterminate gap separating the application of blood then body image? Answer: no, and probably never will be, short of discovering some  forger's diary that had slipped down the back of a well-preserved medieval sofa.
Bloodstains - back of head - one of 20 raised-contrast images from my 'Shroud Scope'  gallery*

*Link to gallery, June 2012

But there's one feature that supports it: that's the 'messiness' of some of the bloodstains, notably on the back of the head, that one infers as being due to the crown of thorns. There is something uncompromisingly 'messy Sudarium of Oviedo-like' in that blood, in sharp contrast to the neater (some might say too neat) scourge mark imprints and blood trails on forearms etc. Indeed one even wonders whether the blood stains evolved in separate instalments, say the major ones first, followed by the more subtle and mannered scourge marks later, all this happening before there was an intention or even inspiration to overlay them all with a body image.

Time now to take a break and deliberate further on this more nuanced scenario - a phased evolution of the Turin Shroud, starting initially as big blood-brother to the Sudarium of Oviedo.


Update, May 22:  here's the opening to a comment on the shroudstory site from the tedious Charles Freeman, self-styled historian (writer of history-themed books actually - something entirely different):

"Disproving my hypothesis that the Shroud was originally a painted linen with iconography of the fourteenth century whose pigments have disintegrated would be a step forward. It has not yet been done so I am keeping the hypothesis alive." 

This is not how science operates. It's not even how academic research in any discipline operates. One does not propose a hypothesis, especially one that ignores or flies in the face of accumulated data, and then sit around, waiting for others to disprove one's hypothesis.

To be useful a hypothesis has to be framed in terms that make it testable. To constantly intone, as Freeman does, that there are experts in painted linen out there who given the right equipment will one day prove him correct, is the ANTITHESIS of academic scholarship. (Yes, "experts in painted linen": how's that for begging the question?). The man is a crushing bore, and vain and arrogant with it too. It's time his publishers took a long hard look at the lack of solid scholarship. He is NOT an academic historian.

It's about as exciting a spectacle as watching a circus tightrope performer with a safety net.  Freeman's safety net is his entirely imaginary community of painted linen experts that he sees as his insurance policy should the going become too difficult.

Update: Saturday May 23


Some comments from David Beltz (posting as daveB) of Wellington, NZ have appeared recently on the shroudstory site, one where I no longer place comments (those who follow that site can probably guess why). However, it shan't prevent me from responding to them here.

Here's the first, reproduced in full, with a par-for-the-course put-down reference to this blogger/retired biomedical scientist highlighted in red.



daveb of wellington nz
May 21, 2015 at 6:30 pm
The difficulties are many. A primary difficulty is one of access. The custodians discharge their duty conscientiously over what many regard as a sacred relic. Even the scientists seem too narrowly focused. There are narrow sectional interests. The big advantage of STURP was that it was multi-disciplinary and they were all able to work together. We have not seen its like in sindonist studies since. There seems to be a difficulty with regional and national horizons. The Americans who contributed so hugely to our present scientific understanding seem to have been locked out by the Italians, who seem to have their own peculiar perspectives.

Large-scale funding is required if the investigations are to be anything other than amateur. Much of the science too seldom seems to get as far as the peer-review stage. Colin Berry labours on in his kitchen or his garage, but his work seems to be too agenda driven.
On the historical front, too much has already been lost. The historians find much to criticise in what meagre documentation there is, and they even complain at intelligent speculation, calling it writing a novel.
The ancients were capable of a great deal more than they are generally credited with. As a young man, I found Sprague de Camp’s history on the ancient engineers most enlightening. Given their industry and individual innovation, I do not find it surprising that they might be capable of weaving a herring bone cloth of the dimensions of the Shroud, regardless of what looms might or might not have been generally available at the time.
I see no future in the painted linen hypothesis, only that it may be disproved. No ancient or medieval painting has the realistic form of the man on the Shroud. Shred the paint off any portrait on linen. If anything remains, it will still look like only an artifact by human hand.
In the meanwhile, the Shroud can serve its purpose as an object of religious meditation, which in these pages is too seldom considered.


So I'm an amateur now, am I, despite a record of published research, some highly cited, and despite having supervised and/or examined PhD theses, acted as referee for top biochemical/biomedical journals? One loses one's professional credentials on retirement - is that the take-away message. Oh, and there's that reference to me continuing to labour away in my kitchen and garage. First, our sniffy and superior David Beltz seems to have overlooked that I have ceased labouring away, having proposed a generic two-stage model for the TS that involves first stage imprinting followed by second stage colour development. The model has been validated using white flour for Stage 1 imprinting followed by nitric acid vapour or solution for second stage colour development. No, I'm not "labouring away" David Beltz. I am awaiting critical comment, though none has so far emerged, folk like you much preferring to make derisive putdowns. As for the kitchen and garage: to the best of my knowledge, nitric acid behaves exactly the same inside a glass jar or bottle in my garage as it does in the laboratory. I could if I so desired impose on a close relative who does biomedical research in one of the world's most prestigious research laboratories, said to have a "Nobel Prize winner on each floor" that is  just a 40 minute drive away, and repeat my experiments there, thus avoiding references to my garage completely. However, I respect that individual too much to do that purely to impress the smug superior David Beltzes of this world.

I'll be back later with another comment from the Mr.High and Mighty David Belz later in the day, one that places another now deceased home-researcher, STURP's Raymond N.Rogers up on his customary pedestal. We'll take a look at what Mr. Rogers is quoted as saying in that 'peer-reviewed' paper of his re the alleged detection of starch on the Shroud, by someone else, not he, himself, and the allusions to Pliny era spinning and weaving technology, and proceed to ask: who's the one making rash, unsubstantiated claims and assumptions, and who's the one trying to stick to the facts, backed up by patient and careful experimentation, albeit in a kitchen or garage?

Oh, and as for that reference to my research being "agenda driven", I've stated repeatedly that my beef is with pseudoscience that masquerades as science. If that's an "agenda" so be it, but I suspect that folk were intended to place a rather different construction on Mr.Beltz's deployment of that term, which from where I am standing is about as mean and despicable an implication as one can get, though entirely predictable where that increasingly no-holds-barred  pro-authenticity cheer-leading, tub-thumping shroudstory site is concerned.

Oh, and here's one from the same incomparable daveb made at the start of the month :

daveb of wellington nz
May 2, 2015 at 7:34 pm

Colin has now been attempting to reproduce the properties of the image for some three years, with indifferent success only, although I applaud his perseverance. Might we suppose that a less chemistry-informed artisan would have struck it lucky any sooner? As one early commentator observed, Colin is more likely to end up proving the resurrection from all his efforts.
So it's a race is it to the correct answer? Who are the other competitors may one ask in the modelling department? Who are these "less chemistry-informed artisans" who should have crossed the finishing line ahead of me?

What we see here, yet again, is snide, belittling comment, the bane of internet forums, that can be summed -up in a single word: TOXIC!

There have been hints previously of that engineer's antipathy towards science and scientists. Here's just one example that I saved to file a way back:



daveb of wellington nz
January 25, 2014 at 3:45 am | #168
The sampling area is clearly anomalous, and unrepresentative of the whole, never mind the details. No other area was sampled. To assert the truth of an hypothesis on such ambiguous evidence would never be accepted in any other scientific endeavour. It merely demonstrates wishful thinking on the part of skeptics and anti-authenticists, not to say their poverty of scientific reasoning. Precisely the same poverty of thought that Yves Delage encountered from the Science Academy in 1905, dominated as it was then by so-called free-thinkers and agnostics. Some things never change!
 


And he has the nerve to accuse me of being 'agenda -driven' ! This from the same man that faltly rejects the d'Arcis memorandum in its entirety, on the grounds that the original Latin document was uncovered and translated into French in the late 19th century by Ulysses Chevalier, who he claims was ideologically tainted and, guess what, agenda-driven?  The ease with which our David Belz resorts to genteel smear tactics doth truly take the breath away.

And here is another gem from our all-knowing, all-seeing commentator. It's supposed to be authoritative science (peer-reviewed journal!!) from Ray Rogers no less.



· 
daveb of wellington nz
May 22, 2015 at 9:48 pm
 
Extract from paper: “THE SHROUD OF TURIN: AN AMINO-CARBONYL REACTION
(MAILLARD REACTION) MAY EXPLAIN THE IMAGE FORMATION” Raymond N. Rogers & Anna Arnoldi, 2003, This article originally appeared in Melanoidins vol. 4, Ames J.M. ed., Office for Official Publications of the European Communities, Luxembourg, 2003, pp.106-113.

“Observations of weave density and lignin content of the shroud fibres (Rogers, 2001) indicate a very mild bleaching technique in agreement with the methods described by Pliny the Elder (77). The same technology was in use, with some minor differences, until after the last crusade in 1291 (Hochberg, 1980). Linen was spun by hand on a spindle whorl. When the spindle was full, the spinner made a hank of thread. Each hank of thread was bleached separately, and each was a little different. Different parts of the same thread in the shroud’s weave show slightly different colours, like a variegated yarn. The warp thread was protected with starch during the weaving process, making the cloth stiff. The final cloth was washed in a solution made from Saponaria officinalis. Saponaria produces four glycosidic saponins, and all hydrolyse to produce sugar chains. (Ya Chirva et al., 1969) The following carbohydrates were identified in those chains: galactose, glucose, arabinose, xylose, fucose, rhamnose, and glucuronic acid.”

“The presence of starch, in particular amilose, on the shroud was confirmed by the fact that during testing for sulfoproteins in blood areas with an iodine-azide reagent (which bubbles vigorously when sulfur is present), a reddish background was formed. Image colour does not appear under the bloodstains when they are removed with a proteolytic enzyme. Whatever process produced the image, colour must have occurred after the blood flowed onto (or was painted onto) the cloth, and the image-producing process did not destroy the blood (Heller and Adler, 1981).”

Note that the authors are asserting that several carbohydrates, including some sugars, were identified, and also amilose, which I take to be a starch. Authors also cite Heller & Adler regarding blood-stains. Searching on “starch” on shroud.com web-site results in several other papers.



My response:

Had the paper come to me for refereeing with that cited passage above, it would have been rejected out of hand.

I'd have appended the following specific comments to the author and journal Editor:

1. Do not go citing Pliny the Elder out of the blue, begging the question re Shroud authenticity, implying that the radiocarbon dating can be safely ignored.  Oh no it cannot. The author might think it invalid, based on his examination of a few threads illicitly removed from the radiocarbon sample, with a subsequent gap in the chain of custody. But he cannot expect others to take his rejection as the consensus position in science. It's not. Indeed, the manner in which Pliny has been insinuated into the above text suggests strongly that Raymond N.Rogers was not strictly neutral and disinterested on the subject of authenticity when he penned the above paper, making it worryingly possible that he was not  neutral at the time he worked with STURP in 1978. It's my belief that Rogers was a closet authenticist. If he considered the radiocarbon dating was hopelessly wrong (by some 1300 years!)  then he as STURP's chemical team leader should have been the one to press for a repeat dating - not to go tacitly assuming authenticity. Science has to be totally objective in its written PEER-REVIEWED publications.

2. The presence of starch "confirmed" with a reagent that designed to test for something entirely different? The correct reagent for detecting starch is a solution of iodine in potassium iodide, which gives a blue-black inky colour with starch. A solution of iodine in the presence of sodium azide, intended to detect sulphoproteins, one that gives a totally different colour (red), CANNOT be assumed to be testing for starch or one its 2 components UNLESS VALIDATING TESTS ARE REPORTED.  They were not. We are asked to accept that iodine/azide is a dual purpose reagent. Who says? Neither does it inspire confidence to see a reference to "amilose", it being AMYLOSE needless to say. Secondly the differentiation between amylose (straight chain starch) and the unmentioned amylopectin (branched chain starch) simply cannot be inserted into a scientific account without a word of explanation. In any case, the two components of starch were not properly recognized as distinct chemical entities until the 1940s. Their relevance to colorimetric tests for starch is highly questionable to say the least, unless dealing with genetic variants of wheat and other cereals, notably maize, that are enriched in one or the other (e.g. waxy maize starches that are almost entirely amylopectin, which gives a red or purple colour with iodine/potassium iodide). What we see here is at best sloppy and imprecise unscientific reporting that should never have got past the referees.

3. There is no conclusive evidence that starch or other polysaccharides and/or sugars are  present on the Shroud, and even if the red colour with iodine/azide were admissible evidence, for which no assurance is offered, the evidence for that was from Adler and Heller. One CANNOT GO BASING MAJOR CLAIMS (as Roger's "starch fraction/Maillard hypothesis" has become a major claim) on evidence from other workers, in other laboratories, that is little more than anecdotal.

Repeat: the paper that David Beltz cites as if the gold standard in Shroudology SHOULD NEVER HAVE BEEN ACCEPTED FOR PUBLICATION.

Research note: while considering my own intervention in TS image research to be largely complete (it is sufficient in science to produce a feasible model that may be beyond the resources of oneself to test ) I may place an order for some iodine/potassium iodide ("Lugol's") solution as a test for starch. The model proposed predicts that while the flour-derived starch would still be present immediately after development with nitric acid vapour (possibly not with the acid as solution)  the starch granules would then selectively wash out in the neutralization step with sodium bicarbonate (leaving just the yellow or orange  nitrated wheat gluten). While starch granules are not 'soluble' in cold water or aqueous solutions, they are nevertheless easily washed out by mechanical action, being of microscopic dimensions, which is the basis for separating wheat gluten protein from starch by kneading flour dough under water, washing out the starch, leaving a rubbery mass of gluten.

I shall add a photo here later of wheat starch granules that I isolated by the washing procedure when showing that it is protein, not starch, that is responsible for the yellow coloration formed when nitric acid reacts with a flour imprint on linen.

 Here are those photos (late addition):

Here's the dried-out sedimented starch at the bottom of the container, after kneading a flour dough so as to be left holding a rubbery mass of gluten (protein)in one's palm. The millions of tiny starch granules then settle out under gravity.
Here's the same sedimented starch, after breaking up into chunks. It's almost but not quite protein-free. Starch granules contain traces of protein (the so-called starch-granule proteins like friablin etc) that are important in determining milling quality - "hard" and "soft". This starch contributes next to nothing to the yellow or orange colour image seen when the negative flour imprints are developed with nitric acid. The colour is due to reaction between nitric acid and gluten proteins.


Update/progress report:  Sunday 24 May

The two stage image capture/image development  model proposed here, which to the best of my knowledge has never been articulated previously, far less demonstrated experimentally, could be said to have began life on 1st April this year (not the most auspicious date I grant you). It was the final posting and abandonment of sulphuric acid as hypothesized agent for the yellow-brown TS image, that acid having been found wanting (it can discolor linen, but only at high concentration AND elevated temperature).  That was the signal to look at alternative acids, with nitric acid being the obvious candidate. The next posting laid the historical groundwork, describing how nitric acid was known in the 13th/14th century, thanks to the writings of 'Pseudo-Geber', possibly one and the same as the Franciscan monk-cum-alchemist, one Paul of Taranto.

Here's a list of the postings on this site, since April Fool's day, taken from the summary table provided by Blogger Blogspot (which hosts this blog) and the current total of visits/views for each posting.



1 April 15 (125 views)


6 April 15  (89 views)


6 April 15 (157 views)


9 April 15 (292 views)

Modelling the Turin Shroud (medieval fake?). Just waiting now for the nitric acid to arrive.   

 Here was the moment when first it all seemed a damp squib, then one's patience rewarded:

Update: 18:00 Friday 17 April

Halleluja: The nitric acid has arrived. (I was out when it was delivered so had to collect if from Post Office, after waiting 2 hours for our regular post-lady  to return it to depot undelivered!).



 
Experiments are under way.  Results initially promising (there being no immediate effect of HNO3 fumes on linen) but then disappointing (no immediate effect of gelatin or flour imprints either). Never mind. These are early days. Maybe it's the liquid acid solution that's needed for development of image, a quick dip maybe, rather than exposure to fumes. Will report preliminary results in a new posting.

Update Saturday  18th April 2015 (for me a red letter day!)

Seems I spoke too soon. The imprint from the hot-water dispersion of wheat flour was left exposed to nitric acid fumes overnight, and removed from its jar this morning for close inspection.


Imprinted image of brass crucifix onto linen, using viscous gelatinized wheat flour, air dried, then developed overnight in nitric acid fumes. (Photo autocorrected in MS Office Picture Manager).

There IS  a faint yellow brown imprint of my brass crucifix, and what's more it's against a beige background (the linen having acquired what might be described as an aged look). What's more there's virtually no imprint visible on the reverse side of the fabric! We have ticked a number of important boxes it would seem.



18 April, red letter day: first communication of new model to outside world, so to speak, with this comment and snapshot placed on a shroudstory posting:

April 18, 2015 at 5:10 am
“…not a painting, not a scorch, not a photograph…”

No, but possibly a ‘chemograph’, obtained using then state-of-the-art 13/14th century alchemy (calcining of metal sulphates and nitrates to obtain nitric acid fumes).
Here’s my latest result- just an hour or so old:

I’ll describe in detail how it was obtained in my next blog posting (which may take a day or two). For now let’s just say that a viscous dispersion was made of white flour in hot water that was then painted onto my brass crucifix. A negative image was imprinted onto linen that was then allowed to dry (becoming near-invisible). The imprinted linen was then suspended overnight in a jar filled with nitric acid (HNO3) fumes. The linen turns a beige colour (aged look?) with the faint yellow-brown imprint you see above (the photo has been autocorrected in MS Office Picture Manager). There was no appreciable reverse side image, possibly because the swollen gelatinized wheat starch granules still have some kind of particulate properties, making it difficult to penetrate the weave.

These are early days. There’s a vast number of changes that can be rung with this ‘nitric fumigation’ model. I’ve briefly tested the effect of increasing the NOx content in the fumigation jar (by adding copper wire that generates visible NO2 as red-brown fumes, and no doubt invisible NO as well). The extra NOx does not appear to improve on the mainly HNO3 -developed image you see above.
Note the parallel with pre-digital photography, using a developing agent to produce a visible image. That allows for constant visual inspection to achieve an optimised end-result, unlike ‘hit or miss’ contact-scorching with a heated template. As I say, it’s not photography, but chemography. The technique could be adapted to work with a real person, needless to say, pre- or post mortem, though the first of those might object to being painted with goo, even edible goo.
April 18, 2015 at 6:42 am
Chemograph…love it. Whether one is pro-medieval or pro-1st century your experiments are rich with possibilities.




20 April 15 (56 views)



21 April 15 (168 views)

Might this be how the Turin Shroud was faked, using medieval alchemy?

Second red letter day, 26 April:  first shroudstory posting devoted to the new model:

"Might tactile chemography prove to be the super- model?"


3 May 15 (109 views)



6 May 15 (72 views)



20 May 15 (92 views)


That's a total of 1160  views since April 1, starting with that abandonment of the briefly-scrutinized H2SO4 model, and subsequent switch to oxidizing/nitrating HNO3.

Typical response  (with one or two welcome exceptions) from commenters on Dan Porter's shroudstory site :

"If you and your model were any good, you’d have thought of it sooner, instead of wasting our time these last 3 years with your blather"


In addition, there are these 2 recent postings on my specialist Shroud site, only recently reactivated after being dormant since end-2014:

13 May 15 (16 views)


Modelling the Turin Shroud: forged in the 14th century as a white flour imprint onto linen? Then chemically developed with nitric acid to resemble ancient yellowed sweat?

19 May 15 (8 views)



A generic model for how the Turin Shroud could have been forged via a TWO STEP process (image capture, then separate image development).


However, the true birth date for the current hypothesis, and the break with previous "thermal scorch" thinking , could be said to have been with this one on Feb 28, 2013

Shroudie-Alert: Day 11 Emeritus Pope Benedict XVI – what is one to make of his devotion to the Shroud (despite that radiocarbon dating)?

 The title, with its reference to the present Pope's predecessor,  provides no clue. But it's the posting in which a careful note was taken of the recent discovery at Machy, close to Lirey, of a mould for a second Lirey pilgrim's badge, with the inclusion of that (arguably) Veronica like face of Jesus above the word SUAIRE. That was when the thought first occurred to this blogger/retired biomedical researcher that the TS body image was meant to be seen as a sweat inprint. How might an ancient  (1300 year old) sweat imprint be - or have been- created as a negative imprint on linen? It took a while for strong mineral acids to be considered, despite one of them (H2SO4) getting a brief mention in STURP's 1981 Summary, as an agent capable in principle of discoloring linen to produce a tan image. But who's watching the clock - or calendar? I'm not. We are, after all, discussing what is said to be the most studied artefact in human history. What's a few months, or even years more? The important thing is to find the model that best fits all the known facts, one that can be used to make predictions capable of being tested, were the TS ever to be made available for a STURP Mark 2 study. Make up of that new team? I'd suggest that it be international, but restricted to folk who have made original and significant discoveries in their field of relevant expertise unrelated to Shroud studies. (This researcher considers he would qualify on account of his discoveries relating to photochemistry of bilirubin,  membrane effects on hepatic glucuronidation in the endoplasmic reticulum and (especially) much-cited work on the preparation, physicochemical and physiological properties of resistant starch as an essentially  man-made form of dietary fibre).

Update 19:30, 24 May 2015

Well folks, I've completed  what I set out to do over 3 years ago, bar a few small experiments to tidy up on the practical details.

 I've suggested how a medieval forger could have produced the image we see on today's Shroud of Turin, making allowance for some 700 years or so of wear and tear. If certain folk wish to see that as an agenda-driven anti-authenticity position, then so be it. For me, it was simply irritation at seeing that headline that read  "Scientists say Turin Shroud is supernatural" (Independent Dec 2011). My immediate reaction on seeing that headline was (as it still is) "Who are these scientists? What right do they have to call themselves scientists? What right do they have to put out press releases as if speaking on behalf of all scientists? Do they  not understand that once they opt for supernatural causation, especially if they have not bothered relentlessly to pursue explanations in terms of conventional science for years, decades even, then they have forfeited the right to call themselves scientists, and indeed do science a huge disservice.

All that remains is to ask if I have forgotten or overlooked something regarding the known characteristics of the Shroud image. Are there aspects that cannot be explained by the new model? I shall take questions here, or on my WordPress site, and nowhere else. Those questions can relate to the science, to the historical record or to the biblical account of the Passion. Anything else is likely to be outside my chosen remit or areas of interest. I'll say so if that is the case.

Update Monday 25 April

A most puzzling comment has just appeared from Charles Freeman on the shroudstory site regarding the "too red" blood on the Shroud. Here it is in full:


in response to daveb of wellington nz:
An example of the nil value of an opinion when unsupported by forensic science! The flow is not from the scourge wounds, but from the vena cava, and has occurred during the short journey from the cross to the tomb. Part of this blood has congealed transversally on the back during this journey, consists of […]
Well, we just have to disagree on the reality of the human blood. I am an independent scholar, formerly a Senior Examiner of the International Baccalaureate;s critical thinking programme, Theory of Knowledge, and thus used to looking at evidence or asking those who know.
I had the Heller/Adler papers read by a professor emeritus of physiology who said that their claims that this was blood were totally unconvincing. I show the bloodstains to any forensic expert i can find and they all say they have never seen dried blood that red.
So I am not working on the understanding that this is blood.
Why can’t the STURP tests be replicated 37 years on? Have they lost the tapes???

My response (articulated here, and here only):
Er, which photograph(s) of the TS show the blood as "too red"? How come after 3 years of looking at TS photographs, I have yet to see them?

It can't be the 1931 Enrie photographs, since they are B/W. It can't be the 2002 Durante pictures, at least those that appear on Mario Latendresse's Shroud Scope, since the colour of the blood in those  pictures is scarcely distinguishable from the body image, the entire look being a dull plum.


Durante 2002 (from Shroud Scope): blood too red?
(The first thing I do with Shroud Scope pictures is put then into MS Office Picture Manager and adjust brightness/contrast/midtone from 0,0,0 to -7/100/15 in order to get the blood looking redder). So which photos are Charles Freeman showing to his buttonholed experts? Maybe those Halta pictures on the iPad app, recently described (aptly methinks) as mere toys?

Blood too red? (Click to enlarge)
 
Or maybe the BBC's earlier release in 2008 of Halta pictures that do show a rosy hue in places where it's not expected, but in prominent areas of body image, not blood especially.


two extremes.jpg
Halta image from BBC site (2008). Some pink coloration - but it's mainly in the beard and other body-image locations.
 Finally, let's not forget the Turin custodians' own site with a selection of TS views, essentially the same it would appear as those on Shroud Scope.No, the bloodstains do not look too red. Indeed, they do not look red at all.


Where did the story of the too-red blood originate?  Answer: from Adler and Heller, who said in writing the blood was too red, the porphyrin spectrum was atypical, and thus was born the "trauma bilirubin/acid methemoglobin" claim, which frankly I regard as a self-indulgent digression into narrative-driven pseudoscience (and have said so on numerous previous occasions, right from the word go, back in early 2012, never with a serious challenge). But it gets worse - much worse: look at the list of STURP team members, and see who has an asterisk beside their name, showing they travelled to Turin in 1978, and viewed the TS with their own eyes (albeit in artificial light). Alan Adler and John Heller do NOT have asterisks beside their names. They did NOT go to Turin in 1978. All their work was done with those sticky-tape samples supplied to them by Ray Rogers.  (One could be forgiven for thinking otherwise when one reads Adler's pdf). There is a big difference between viewing the whole TS image, where bloodstains can be seen adjacent to body image, and viewing selected samples of lifted blood (or "serum-coated fibres" as Adler unhelpfully described them) with no body image as a reference.

Barrie M.Schwortz has been responsible over the years for proselytising the "blood abnormally red" description, and his admiration for Alan Adler's pro-authenticity narrative-friendly bilirubin explanation. BS, now STERA  President, was of course was one of STURP's Documenting Photographers. Methinks the time has come for him to release some more photographs from that copyright-protected archive of his that might convince the sceptics, myself included, that the TS blood really does have a brighter colour than might be expected from that of brown 2 month old bloodstains never mind 2,000 years. Or has he already done so, in that archive of photomicrographs(see Figs.8 onwards)  taken by Mark Evans (fellow STURP Documenting Photographer) that he released a couple of years back to Thibault Heimburger MD for his pdf? Is that the (sole?) documentary evidence for blood that looks to red?


Misleading impression of 'redness' created by high magnification/strong illumination? RGB reference standards for comparison? Might the colours also have been digitally adjusted in a manner that accentuated redness?

That still leaves unanswered the question as to which photograph Charles Freeman showed to his forensic experts or emeritus professor of physiology. I shan't bother asking him directly. I've wasted too much time already - putting innumerable points and questions to someone who persistently displays a blissful indifference to the hard facts - and getting back nothing useful in return.

Update: Tuesday 26th May

Once in a while, one stumbles across a line of argument deployed in defence (or promotion) of Shroud authenticity that is so straw-clutching a hatchet job that the best policy is probably to ignore it, so as not to give it any greater currency than it deserves. Such is the case with a paper presented by US attorney Jack Markwardt.


 Yes, he's very keen that we should know he's an attorney, because attorneys are highly skilled at establishing the facts of a case, and setting out arguments in a logical and structured fashion. Right?

This blogger had grounds for suspecting the above cosy assumption was  not to be taken on trust, given that Markwardt's paper was cited by the corrosively cynical David Beltz (see earlier) as having been instrumental in making him reject the d'|Arcis memorandum, on the grounds, we're told, that the discoverer and translator of that document - French historian Chevalier Ulysse, was some kind of bigot intent on demolishing the authenticity of the TS as a means of pursuing a wider agenda against organized religion.

Well, I have just taken a quick look at the Markwardt paper, and what a lot of laboured nitpicking it was, intended to undermine the credentials of the d'Arcis memorandum as a valid historical document. I shall spare you all of that tedious  and turgid screed, dear reader, and just draw your attention to the proposition the readers is supposed to let by unchallenged near the start of the 14 pages.



Page 3/14


THE CHEVALIER STUDY
In 1900, Chevalier published a study of medieval documents that, he claimed, proved the Shroud a forgery (ref 5).

His conclusion was centered upon the previously obscure
D’Arcis Memorandum, a medieval document in which Pierre d’Arcis, bishop of Troyes, alleged that an unnamed artist had once admitted to having painted the double-body image that appeared on a cloth owned and exhibited by Geoffrey II de Charny, Lord of Lirey.(Ref 6).

Since this cloth and the Turin Shroud were then, and still are, generally
considered as one and the same, the D’Arcis Memorandum, if authentic and credible, would rather decisively lay to rest the relic’s claim to first-century provenance. 

As an experienced historian, however, Chevalier recognized that the charges of forgery contained in the D’Arcis Memorandum would not be deemed credible unless d’Arcis had, in fact, remitted the document to the Avignon Antipope, Clement VII. If Chevalier could establish that this had occurred, the memorandum’s contents would be rendered virtually unassailable inasmuch as the bishop would surely not have risked
asserting a charge that might be exposed as false and slanderous by a papal investigation.
Conversely, were Chevalier unable to establish that the memorandum was submitted to the Pope, the document would constitute little more than the repetition of rank hearsay or outright fabrication and could be accorded little historical weight in the authenticity debate between the conservative and progressive clergy.
 
The key words in that cut-and-paste are (in red) :

As an experienced historian, however, Chevalier recognized that the charges of forgery contained in the D’Arcis Memorandum would not be deemed credible unless d’Arcis had, in fact, remitted the document to the Avignon Antipope, Clement VII.

 What complete and utter tosh!

Bishop Pierre d'Arcis could have written his memorandum to anyone, far less grand in the Church hierarchy - and its assertions could be judged purely on the case presented. Since when has a communication had to be posted to a VIP in order to be taken seriously and assessed on its merits?

So all the long and tedious arguments about whether the memorandum was actually dispatched or left unposted in draft form, or whether the antipope's  subsequent consent for lifting the earlier long ban on displaying of the Shroud (only as a aid to worship, while explicitly forbidding any claims to be the actual burial shroud of Jesus) was or was not evidence for the memorandum having been received and read) is all totally irrelevant where the historical credibility of otherwise of the memorandum is concerned. D'Arcis could have written it as a letter to his own mother, and it would still be regarded as a valuable historical document, especially in view of the paucity generally of written references to the TS in the 14th century.

In fact, this blogger in the past has made occasional reference to another missive regarding the TS, written by another bishop in a later century (from Annecy, 1614). It was penned by St.Francis de Sales, bishop of Geneva, founder of the still-going-strong Salesian order, shortly after viewing the TS with his own eyes, and making numerous references to his tacit assumption, accurate or otherwise, that it was an imprint in sweat and blood. 

Annecy, 4 May 1614

Whilst waiting to see you, my very dear Mother, my soul greets yours with a thousand greetings. May God fill your whole soul with the life and death of His Son Our Lord! At about this time, a year ago, I was in Turin, and, while pointing out the Holy Shroud among such a great crowd of people, a few drops of sweat fell from my face on to this Holy Shroud itself. Whereupon, our heart made this wish: May it please You, Saviour of my life, to mingle my unworthy
sweat with Yours, and let my blood, my life, my affections merge with the merits of Your sacred sweat! My very dear Mother, the Prince Cardinal was
somewhat annoyed that my sweat dripped onto the Holy Shroud of my Saviour; but it came to my heart to tell him that Our Lord was not so delicate, and that He only shed His sweat and His blood for them to be mingled with ours, in order to give us the Price of eternal life. And so, may our sighs be joined with His, so that they may ascend in an odour of sweetness before the Eternal Father.

But what am I going to recall? I saw that when my brothers were ill in their childhood, my mother would make them sleep in a shirt of my father’s, saying that the sweat of fathers was salutary for children. Oh, may our heart sleep, on this holy day, in the Shroud of our divine Father, wrapped in His sweat and in His blood; and there may it be, as if at the very death of this divine Saviour, buried in the sepulchre, with a constant resolution to remain always dead to itself until it rises again to eternal glory. We are buried, says the Apostle, with Jesus Christ in death here below, so that we may no more live according to the old life, but according to the new. Amen. 


Francis, Bishop of Geneva
The 4th of May 1614


It's a valuable historical record, coming from an eye-witness, and one who had moreover made his mark as a scholar and (probably) man of his word. Is that because his letter was sent to the then Pope? No. It was sent to ...  guess who? Yes, his mother, his dear old mum, and is none the less credible for that. Indeed, some might think it more credible (folk, least of all those who are subsequently canonized, do not generally try to deceive their own mothers).

Update: Wed 27 May 2018

Here's a fascinating and thought-provoking article in today's Mail, which under the less-than-inspiring headline saying that erasers should be banned from classrooms. It goes on to  make the more telling point that children's, and indeed adult's mistakes should be "embraced" as part of the real-world learning process. 

It's a principle this now primarily TS-focused blog-within-a-blog  implicitly recognized when first set up over three years ago. It describes a learning curve, one in which all current thinking is articulated. When, as so often happens, later results and insights make that initial thinking redundant, what does this blogger do? Answer: nothing. The original thoughts, ones that may cause one to cringe when looking back, stay in place. I NEVER doctor far less erase the record. What is becoming increasingly clear is the way in which wrong directions are the result of buying in to false preconceptions, and, as often as not, those preconceptions are, or were, not one's own, but those of the society in which one lives. 

Concrete example? The description of the imprinted linen as a "shroud", with the tacit assumption that the Turin "Shroud" is a burial shroud. If one reads the Gospels, comparing closely the account of the intervention of Joseph of Arimathea in the synoptic gospels with that of the same supplier of linen AND then that of Nicodemus in John with the new reference to winding sheets and aloes, myrrh, spices, ointments, then an entirely different scenario from 'received wisdom' unfolds. The TS, as stated so often on this site, was never intended for use as a burial shroud. It was used merely for receiving the body of Jesus from the cross and transporting it to the nearby rock tomb. That's why the TS image can be interpreted as a contact imprint in blood and sweat requiring no supernatural projection of body image across air gaps that is not just assumed in sindonology circles but actively proselytized  to promote a resurrection narrative. The latter may or may not have occurred - even the gospel accounts seem quite guarded in that respect - but if it did occur, then the image was imprinted on Nicodemus's winding sheets, the real burial shroud, NOT on Joseph of Arimathea's transport linen. Sorry, sindonologists: it's too late to rub out your faulty preconceptions, based not only on wishful thinking, but on a careless or over-hasty reading of the biblical account of the Passion.

Today, I am developing some imprints made yesterday. There are three main questions being addressed: how do imprints made (from my hand) with cold flour dispersion compare with those of a more transparent paste made with hot water (in which the starch granules are gelatinized)? How do LOTTO images compare with LUWU (linen on top of hand, or hand pressed downwards into linen)? How do images made with extracted starch compare with those made with whole flour, the latter having considerable protein, mainly wheat gluten, as well as starch? Results should be available by the end of the day and will be reported in a new posting, drawing a line under this one. 

Update 27 May, 10:25


There's been a response from Dan Porter on his shroudstory site to my earlier comments on this posting re the "blood too red" mantra, the one for which I can find scarcely any evidence in published photographs.




Porter has a pop as per usual re my "overlong" postings that drift, still oblivious to the fact that this site is not a blog in the conventional sense.  It is a report in real time of  a highly focused research project, designed to test the claim that the TS could not have been produced by medieval forgery. All the twists and turns are logged. Why? Because if this 'blogger' were to succeed in his task, one that we're told has eluded generations of researchers ("the TS is the most studied artefact in history") then posterity, or at any rate my grandchildren, might like to know how I was able to arrive at an answer, experimenting in a kitchen and garage, with no proper laboratory, and no research funding, buying all my equipment and chemicals from internet traders.


There is also the inevitable jibe. Right at the very end he gives a link to an earlier posting of his, addressing the "blood too red" issue, one in which he had singled out my then current views, albeit directed more to the wider issue of "bilirubin", the presence or absence thereof. He asks why I had not expressed a view then on the issue of blood colour per se, when so many others were taking the "too red" colour description supposedly as beyond dispute.



There's a simple answer to that. Look at the date on that posting: Jan 10th 2012. I had been in Shroud research less than two weeks, the first TS posting on this site being December 30, 2011. I was expressing deep scepticism re the presence on bilirubin in TS bloodstains, not primarily for its contribution to blood colour, but because I knew from having worked for two years exclusively on bilirubin photochemistry (for its role in phototherapy of neonatal jaundice) that the chances of bilirubin surviving 2000 years, or even 700 years, in amounts sufficient to respond to standard lab tests (diazo etc) were essentially zilch. I repeat: ZILCH! If TS blood really is "too red" for aged blood, then it's something other than bilirubin that is responsible. Alan Adler, sadly no longer with us, but still posthumously accountable as STURP's porphyrin chemist, should not have been content to comment on an abnormal porphyrin spectrum, and then go positing a narrative-friendly fantasy re 'trauma' bilirubin that could not have survived two years without protection from light and oxygen, never mind two millennia. He should have isolated the anomalous porphyrin, e.g. by chromatography, easily tracked by its red fluorescence under uv,  and then submitted it to mass spectrometry to see whether the porphyrin per se was different from normal physiological protoporphyrin IX. One is supposed to do that sort of thing BEFORE invoking interaction with other chemical entities that he claimed to be present "in extraordinary amounts" (omitting to give numbers) based on quick visual spot tests under the microscope, without bothering  to isolate and characterize.

Update, 12:30, 27 May

As I say, I no longer comment on the shroudstory site, it being 90% malevolent flak, most of it hopelessly uninformed, and 10% useful and balanced observation, most from the same two commenters, one UK based, the other US.

However, here's a comment from the advanced positions of the artillery brigade that just has to be recorded, here for posterity, as well as that site.



in response to Dan:
Berry: Where did the story of the too-red blood originate?  Answer: from Adler and Heller You may have noted a comment by Charles Freeman.  Well, we just have to disagree on the reality of the human blood. I am an independent scholar, formerly a Senior Examiner of the International Baccalaureate;s critical thinking programme, Theory of […]
From his very look at an actual small fragment of blood he discerned in his labs high-powered microscope with different mode of viewing, Heller describes what he saw as bright red. Adler later concurred. Explaining the bright red color was a challenge but they believed that it was the result of the torture Christ endured releasing bilirubin into the blood stream.
They did not offer off the cuff anonymous opinions. They checked their findings with associates and received confirmation. They used multispectral analysis down to the nanogram level. They published in a peer review journal.
NONE of the photographs taken of the Shroud are fine definition enough to visualize that level.










Thank you Mr.Klotz, thank you in eternal gratitude, for relating what is almost certainly the  basis of the "too red" claim. I need add no more - not a single word.

Afterthought (13:30, 27 May): well, one self-indulgent  word maybe (or two if hyphenated): pseudo-science. That's agenda-driven pseudo-science. 90% or more (probably more) of 'sindonology' is agenda-driven  pseudo-science, the Adler/Heller  fantasy-based claims for  bilirubin being the root cause of their own dubious claims  for "too red blood" being just one more  egregious example.