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AMS works slightly differently; it converts the atoms of the sample into fast-moving ions so that they become charged atoms.

By applying magnetic and electrical fields, the mass of these ions is measured and the accelerator is used to remove ions that might contaminate the dating.

This does not mean that we have a precise year of 3780BC, it means we then need to calibrate through other methods that will show us how atmospheric concentrations of the C isotope has changed - most typically through the dendrochronology records (tree ring data) (10).

Very old trees such as North American Bristlecone Pine are ideal for constructing long and accurate records of the state of the atmosphere.

It also has some applications in geology; its importance in dating organic materials cannot be underestimated enough.

In 1979, Desmond Clark said of the method “we would still be foundering in a sea of imprecisions sometime bred of inspired guesswork but more often of imaginative speculation” (3).

Stone and metal cannot be dated but pottery may be dated through surviving residue such as food particles or paint that uses organic material (8).

There are a number of ways to enter into a career in studying radiocarbon dating.

This is why calibration against objects whose age is known is required (14).When the half-life was corrected in 1950, the year was taken as a base date from which to calculate all resulting dates.Therefore, any expression of “before present” will mean “before 1950”.Archaeologists had used Relative Dating methods to calculate their reigns.Though their initial calculations were slightly incorrect thanks to the contaminants of extensive nuclear testing of the age, scientists soon discovered the error and developed methods that were more accurate, including a date of calibration to 1950.When an organism dies, it stops absorbing the radioactive isotope and immediately starts decaying (7).