The man's body was recovered and pieces of tissue were studied for their C content by accelerator mass spectroscopy.The best estimate from this dating technique says the man lived between 33 BC. From the ratio, the time since the formation of the rock can be calculated.
Methuselah Methuselah is a bristlecone pine, and the world's oldest living thing.
His growth rings document nearly 47 centuries of survival.
Bristlecones grow so slowly that a century of tree rings adds less than an inch of girth.
The precise, extended chronology of these trees is directly responsible for the accuracy of radiocarbon dating.
The radiocarbon method was developed by a team of scientists led by the late Professor Willard F.