BT writes from New London:

Is Jones right? . . . On his blog he reported this:

clip_image001By the way Prof. Hedge’s claim that: "Hall’s [Oxford] laboratory dated its sample to between 1260 and 1390" is false and as a nuclear physicist involved in Oxford’s radiocarbon dating of the Shroud, he must know it is false. As Table 1 of the 1989 Nature paper shows, none of the three laboratories dated its sample to between 1260 and 1390 (the dates are years before 1950). That makes Oxford’s C-14 dates: "795±65" = 1090-1220; 730±45" = 1175-1265; and "745±55" = 1150-1260," an average of 1138-1248. So the highest of Oxford’s average C-14 date of the Shroud is over 100 years before the Shroud first appeared in the undisputed historical record at Lirey, France in about 1355! So Prof. Hall’s own laboratory’s 12-13th century C-14 dates don’t support his claim that the Shroud was forged "during the 14th century"! The "1260 and 1390" date was a statistically manipulated average of the three laboratories’ C-14 dates.

[Right: C-14 dates of "Sample 1" (the Shroud) from Table 1 of the Damon, et al., 1989, "Radiocarbon Dating of the Shroud of Turin," Nature, Vol. 337, pp.611-615, 16th February.]

BT continues:

Could Jones be right? What don’t I understand? I don’t know the math of C14 dating.

What does Jones mean by manipulated? What makes it a manipulated average? I’d like to see the calculations.