CNN Weed Dr. Sanjay Gupta Reports April 11, 2015 01:37:00
It goes. >> in kansas city, professor tom hyam of oxford university is trying to figure out a way of drilling into a relic of john the baptist. >> because here it's open already. i think it's best to go in here. >> he hopes to date the carbon inside the bone and perhaps even get a dna profile that can then be matched against the first century relic he has already tested from bulgaria. >> it's the collagen part of the bone that we want to date. that's the protein part. and that, in modern people, is about 20% by weight. but of course, in older materials, the collagen decays and degrades. and so...