14 carbon dating method
Believers in the Shroud of Turin, however, insist that the Shroud is the substance of this hope and the evidence of this unseen event.
It is, they believe, the burial cloth of Jesus Christ.
Like a tennis ball, the hypotheses are whacked back and forth.
Libby invented carbon dating for which he received the Nobel Prize in chemistry in 1960.
The halflife of carbon 14 is 5730 ± 30 years, and the method of dating lies in trying to determine how much carbon 14 (the radioactive isotope of carbon) is present in the artifact and comparing it to levels currently present in the atmosphere.
Because it reacts identically to C-12 and C-13, C-14 becomes attached to complex organic molecules through photosynthesis in plants and becomes part of their molecular makeup.
Animals eating those plants in turn absorb Carbon-14 as well as the stable isotopes.