Carbon dating shroud

The range of uncertainty for each test is high because the number of sample cloths used for comparison was low; 8 for FTIR, 11 for Raman, and 12 for the mechanical test.The scientists note that "future calibrations based on a greater number of samples and coupled with ad hoc cleaning procedures could significantly improve its accuracy, though it is not easy to find ancient samples adequate for the test." They used tiny fibers extracted from the Shroud by micro-analyst Giovanni Riggi di Numana, who gave them to Fanti.Below is a summary of scientific and historical evidence supporting the authenticity of the Shroud of Turin as the ancient burial cloth of the historical Jesus of Nazareth. Michael Fischer, adapted from the original article by John C.Iannone THE SHROUD AS AN ANCIENT TEXTILE The Shroud is a linen cloth woven in a 3-over-1 herringbone pattern, and measures 14'3" x 3'7".The radiocarbon date was thus not valid for determining the true age of the shroud." "As part of the Shroud of Turin research project (STURP), I took 32 adhesive-tape samples from all areas of the shroud and associated textiles in 1978." "It enabled direct chemical testing on recovered linen fibers and particulates"."If the shroud had been produced between 12 AD, as indicated by the radiocarbon analyses, lignin should be easy to detect.Dyeing was probably done intentionally on pristine replacement material to match the color of the older, sepia-colored cloth." "The dye found on the radiocarbon sample was not used in Europe before about 1291 AD and was not common until more than 100 years later." "Specifically, the color and distribution of the coating implies that repairs were made at an unknown time with foreign linen dyed to match the older original material." "The consequence of this conclusion is that the radiocarbon sample was not representative of the original cloth." "The combined evidence from chemical kinetics, analytical chemistry, cotton content, and pyrolysis-mass-spectrometry proves that the material from the radiocarbon area of the shroud is significantly different from that of the main cloth. John Jackson and Propp in 1998, which replicated the famous Fire of 1532, demonstrated that the fire added carbon isotopes to the linen. Journal of Archaeological Science, Volume 23, Issue 1, Pages 109-121. They comprise three tests; two chemical and one mechanical.

These tests were carried out in University of Padua laboratories by professors from various Italian universities, led by Giulio Fanti, Italian professor of mechanical and thermal measurement at the University of Padua's engineering faculty.

250 years (the collective uncertainty is less than the individual test uncertainties).

The average date is compatible with the historic date of Jesus' death on the cross in 30 AD, and is far older than the medieval dates obtained with the flawed Carbon-14 sample in 1988.

In 2002, a team of experts did restoration work, such as removing the patches from 1534 and replacing the backing cloth.

One of the specialists was Swiss textile historian Mechthild Flury-Lemberg.

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Ray Rogers, retired Fellow with the Los Alamos Scientific Laboratory and lead chemist with the original science team STURP (the 1978 Shroud of Turin Research Project, involving approximately 35 scientists directly examining the Shroud for five days), has shown conclusively that the sample cut from The Shroud of Turin in 1988 was taken from an area of the cloth that was re-woven during the middle ages.

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