The radiocarbon dating method is based on the fact that radiocarbon is constantly being created in the atmosphere by the interaction of cosmic rays with atmospheric nitrogen.
The resulting radiocarbon combines with atmospheric oxygen to form radioactive carbon dioxide, which is incorporated into plants by photosynthesis; animals then acquire in a sample from a dead plant or animal such as a piece of wood or a fragment of bone provides information that can be used to calculate when the animal or plant died.
NOTE: I wrote this post about my experience dating women in Medellin back in April of 2013.
Over the past 5 years I’ve dated many Colombian women and I frequently update this post.
Medellin women are beautiful, and word is spreading pretty much around the world. I had to learn everything from experience, and it’s been a blast.
Steven Green, a former 101st Airborne soldier, in his first interview since the 2006 killings, claimed that his crimes were fuelled in part by experiences in Iraq's violent 'Triangle of Death' where two of his sergeants were gunned down.
The battle with Guerriere earned her the nickname of "Old Ironsides" and public adoration that has repeatedly saved her from scrapping.
She continued to serve as flagship in the Mediterranean and African squadrons, and circled the world in the 1840s.
Research has been ongoing since the 1960s to determine what the proportion of in the atmosphere has been over the past fifty thousand years.
The resulting data, in the form of a calibration curve, is now used to convert a given measurement of radiocarbon in a sample into an estimate of the sample's calendar age.