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Vance Lipsey: Is there a better way to check the shroud than carbon dating? I've been told carbon dating is very inaccurate.
Goodacre: Actually, carbon dating is an excellent way to ascertain the date of an artifact. Many are disappointed, not surprisingly, that the shroud dated to between AD 1260 and 1390. I recall my own disappointment (but not surprise) on hearing the results back in 1988. But the scientists doing the carbon dating were not amateurs, and the samples were tested in three separate labs. Moreover, the carbon date cohered with other evidence that the shroud was a medieval forgery, like the fact that there is no evidence of its existence until the 14th
Cynthia Restivo: So I know the carbon dating was off, but wasn't it later shown that the piece of cloth used for the testing was a section that had been repaired after some fire damage or something? Which would explain why it dated different?
Goodacre: No, that's not been established. Those who defend the authenticity of the shroud often say the sample might have been taken from a part of the shroud that was repaired after it was damaged by fire in the 16th century. But this is special pleading. The scientists who took the sample knew what they were doing. Professor Christopher Ramsey noted that the unusual weave on the sample matched the weave on the rest of the shroud perfectly.
There is another side to this question. How do the shroud proponents think the image was formed? Do they have theories that are plausible and that would tend to conflict with the medieval date or human manufacture?
The following are the most popular theories:
Contact: The shroud, being in direct contact with the body, absorbed the oils and spices that were on the body. This theory can be discounted since oils and spices were not found on the shroud, also a cloth wrapped around the body would produce an expanded image of the body when flattened out. The image would also be blurred as the oils soaked into the cloth.
Vapour: The theory that the image was caused by the projection of body vapours. This can also be rejected since vapours don't travel in straight lines, but disperse, so once again the image would be blurred, which it isn't.
Flash photolysis: The most popular theory. The image was caused by a short burst of radiation caused by the resurrection. This too has been discredited because the fibres in the image areas show no additional degradation than the non-image areas. Radiation would cause visible damage to the fibres (when viewed microscopically) and this is not evident. Radiation would also cause the image to penetrate the cloth, unlike the superficial shroud image that is observed. This radiation is also said by some to have altered the C14 ratio, causing an erroneous carbon dating result. However to believe that the shroud received the exact amount of radiation required to alter the date of the cloth to the medieval date of its first documented appearance would be a remarkable coincidence. There is also no evidence that a body can be resurrected or that it emits radiation when doing so.
Leonardo: The shroud was created by Leonardo da Vinci who invented photography in secret. Although not supporting a 1st century date or connection with Jesus, this theory is often mentioned by some as the origin of the shroud. Proponents conveniently ignore the fact that the shroud had existed for a hundred years before Leonardo was even born (1452 CE).
Thus it is clear that shroud proponents have no viable theory of image formation that fits the characteristics of the shroud. When asked how the image formed, if they're honest, they should also answer, 'I don't know'. Of course they could answer that it was a miracle, but miracle in this context is just another word for mystery. And a mystery is something we don't understand, so we're back at not knowing.
originally posted by: The angel of light
a reply to: Krazysh0t
Dear KrazyshOt,
The reason for which many people think this is a forgery is primarily due to the mismatch of the Carbon Dating test that we now know has a lot of failures when it is applied on objects of the characteristics of this one in particular, and that I have already explained in my first post:
1) Contamination with atoms of carbon as a result of 3 fires in its History,
This discovery was found and extensively researcherd by John Jackson, a physics lecturer at the University of Colorado at Colorado Springs,
Please read :
www.wnd.com...
Cynthia Restivo: So I know the carbon dating was off, but wasn't it later shown that the piece of cloth used for the testing was a section that had been repaired after some fire damage or something? Which would explain why it dated different?
Goodacre: No, that's not been established. Those who defend the authenticity of the shroud often say the sample might have been taken from a part of the shroud that was repaired after it was damaged by fire in the 16th century. But this is special pleading. The scientists who took the sample knew what they were doing. Professor Christopher Ramsey noted that the unusual weave on the sample matched the weave on the rest of the shroud perfectly.
2) Bioplastic material created by bacteria living in the cloth, a phenomenon that has been also studied in ancient Egyptian mummies.
This discovery was made by a team led by Leoncio A. Garza-Valdes, MD, adjunct professor of microbiology, and Stephen J. Mattingly, PhD, professor of microbiology of the University of Texas at San Antonio and it is right now supported by ulterior research carried out in University of Arizona.
Please read:
uthscsa.edu...
3) The repairs on the original linen cloth that were done by nuns in different occasions with much younger fibers of Cotton.
This finding was done by Professor Edward Hall, head of the Oxford lab, and by Dr. Alan Adler, a chemist and member of the STURP team that studied the Shroud in 1978.
Please read: www.shroud.com...
An acceptable theory of why the Shroud dated between AD 1260-1390 must satisfactorily explain the precise, statistically-determined angular skewing of the dates corresponding with the individual laboratories, with reference to the location of the subsamples received. The traditional theories of generalized ionizing radiation, thermal effects, and bioplastic coating are incapable of meeting this latter requirement, as is the premise that the cloth itself, is, in toto, medieval. Our theory that a significant portion of the C-14 sample was, in actuality, a patch of 16th century material, meets all the requirements necessary to explain the results obtained by the laboratories.
The most recent 'explanation' by shroud proponents for the 'wrong' date is that the sample removed from the shroud for testing was a patch. There's no denying that the shroud has been patched during its existence, especially after the 1532 fire. In it's early days some people even deliberately tried to damage it to prove that the burial cloth of their Lord Jesus Christ was indestructible. They were wrong. There's also no denying that most of these patches stand out like squares on a patchwork quilt. The contention is that the sample returned a 14th century date because it was not part of the original shroud linen, but part of a medieval patch. The carbon dating was 100% accurate. The mistake was made in selecting the sample. While this is of course plausible, there are several reasons to doubt this version of events. For one the Vatican had already examined the shroud over many years. They knew the shroud's surface intimately. The STURP scientists had also conducted their extensive examination of the shroud. The Vatican had already cut a sample from the shroud for examination by a textile expert called Raes, and this piece was not revealed as a patch. This fact is important because the carbon dating sample was taken from exactly the same area. It was only after consultation between the Vatican, scientists and textile experts that the sample area was agreed on. Everyone was well aware that they had to avoid patched areas. None of these groups, least of all the Vatican, would have permitted the sample to be taken from an area that wasn't thought to be the original material. Some people have since said that the scientists were incompetent, that they rushed the sample taking or that they deliberately chose a patch, knowing it would give a medieval date. But as I've said, the scientists didn't make the choice alone, they didn't take the actual sample and the Vatican fully supported the choice. No one expressed any doubts at the time. Only after the 'wrong' date was arrived at and their theories on bio-contamination were debunked did shroud supporters start looking at the possibility of a flawed sample. They now insist that you can't tell it's a patch, even under a microscope, because the medieval repairers employed 'invisible reweaving'. Obviously this skill of 'invisible reweaving' was lost by the time of the 1532 fire repairs in 1534, which appear very amateurish. Shroud proponents' claim that medieval artisans were too stupid to make the shroud but at the same time had this unknown weaving skill that is impossible to achieve today. The only real support for the patch theory comes from the late Ray Rogers, a retired chemist and also director of chemical research for STURP. In his home laboratory he performed some controversial tests on two threads he claims came from the carbon dating sample, stating they differ from the rest of the shroud which he has dated between 1000 BC and 700 CE. He achieved his dating using an imprecise, unproven scientific method involving the measurements of carbohydrates such as vanillin. A method that was not calibrated and that used no control samples. Needless to say the scientific community do not support his results or methods. While it is possible that the sample was a patch, there is no convincing evidence to support or even suggest this.