therefore does not deflect incoming cosmic rays. Once the
The methodology was developed in the late Forties at the University of Chicago by Willard Libby. It is predicated on the fact that radiocarbon (14C) is continually being created in the Earth’s environment gaycupid by the interplay of cosmic rays with atmospheric nitrogen. The resulting 14C combines with atmospheric oxygen to type radioactive carbon dioxide, which is incorporated into crops by photosynthesis; animals then acquire 14C by eating the crops.