Carbon dating forensic science
When analysing the kinetics involved in its disappearance, the research group established a pattern that links the state of the ink with the time that has elapsed.
More accurate, less invasive After observing this natural evolution and once the base guideline had been established, the next challenge to be overcome was to check the viability of the method using spontaneously written documents whose exact age was known, such as diaries, laboratory logs and judicial evidence from judicial processes that had been closed.
Each document was produced at different moments using a different ink stroke pressure, factors that may alter the results and lead to dating errors.
During the natural ageing process of each sample, which had a known age, the research team analysed the evolution in the various volatile components.
In these cases, significant dating errors occur because the type of paper used and the mass/quantity of the ink deposited influence the analysis.
In this article, we will examine the methods by which scientists use radioactivity to determine the age of objects, most notably carbon-14 dating.
Carbon-14 dating is a way of determining the age of certain archeological artifacts of a biological origin up to about 50,000 years old.
It is used in dating things such as bone, cloth, wood and plant fibers that were created in the relatively recent past by human activities.
You probably have seen or read news stories about fascinating ancient artifacts.
At an archaeological dig, a piece of wooden tool is unearthed and the archaeologist finds it to be 5,000 years old.