W F Libby's new dating method from the 1940s, based on experience in physics . It was necessary to extrapolate the measured activity to zero level of the Experiments were performed by absorbing carbon dioxide in barium Treatments in some laboratories with other methods have been developed, partly to suit AMS.
16 Jul 2012 Gary Taubes, author of Why We Get Fat, talks with EconTalk host of the risks of confirmation bias and cherry-picking data to suit one's pet [Recording date: July 11, 2012.] .. So now he does the same experiment again--remove the ovaries; but .. Zero carbs does not--it has a similar problem, I think.