Radiometric dating means
They found a form, isotope, of Carbon that contained 8 neutrons and 6 protons.
Using this finding Willard Libby and his team at the University of Chicago proposed that Carbon-14 was unstable and underwent a total of 14 disintegrations per minute per gram.
Using this hypothesis, the initial half-life he determined was 5568 give or take 30 years.
The accuracy of this proposal was proven by dating a piece of wood from an Ancient Egyptian barge, of whose age was already known.
This discovery is in contrast to the carbon dating results for the Turin Shroud that was supposed to have wrapped Jesus’ body.
Carbon dating has shown that the cloth was made between 12 AD.
Radiocarbon dating (usually referred to simply as carbon-14 dating) is a radiometric dating method.
It uses the naturally occurring radioisotope carbon-14 (14C) to estimate the age of carbon-bearing materials up to about 58,000 to 62,000 years old. Carbon-14 has a relatively short half-life of 5,730 years, meaning that the fraction of carbon-14 in a sample is halved over the course of 5,730 years due to radioactive decay to nitrogen-14.
The total mass of the isotope is indicated by the numerical superscript.
The entire process of Radiocarbon dating depends on the decay of carbon-14.
This process begins when an organism is no longer able to exchange Carbon with their environment.
From that point on, scientist have used these techniques to examine fossils, rocks, and ocean currents and determine age and event timing.
Throughout the years measurement tools have become more technologically advanced allowing researchers to be more precise and we now use what is known as the Cambridge half-life of 5730 /- 40 years for Carbon-14.