Now, chemists Marco Bella, Luigi Garlaschelli, and Roberto Samperi have published a paper that concludes (with its title), “There is no mass spectrometry evidence that the C14 sample from the Shroud of Turin comes from a ‘medieval invisible mending.’”
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So once again, attacks on the accuracy of the radiocarbon testing have been discredited. Some shroud believers invoked the supernatural, suggesting that an imagined burst of radiant energy from Christ’s resurrection had altered the carbon ratio. One scientist claimed a microbial coating on the cloth had caused an erroneous date; however, not only had the samples been thoroughly cleansed before testing, but for the date to have been altered by thirteen centuries, there would have had to be twice as much contamination, by weight, as the cloth itself!
CFI, mainly a blog, is a program of the Committee for Skeptical Inquiry (CSI).