Many people think the famous inscription dedicated to this person referred to the king remembered for his ‘golden touch’, but that’s just because the deity associated with the Midas Monument is usually known by another name.
food safety management in the cold chain through expiration dating - Radioactive dating artifacts
The half-life of C is approximately 5730 years, which is too short for this method to be used to date material millions of years old.
The isotope of Potassium-40, which has a half-life of 1.25 Billion years, can be used for such long measurements.
This method has the following restrictions: a) It cannot be used to date items many thousands of years old; b) it can only be used in non-organic materials; and c) the materials to be dated must have been heated to more than 350 degrees Celsius. All of the current dating methods are going through refinement.
Archaeologists are seeking an accurate dating technique, but this method is yet to be found.
The absolute dating method first appeared in 1907 with Lord Rutherford and Professor Boltwood at Yale University, but wasn’t accepted until the 1950s.
The first method was based on radioactive elements whose property of decay occurs at a constant rate, known as the half-life of the isotope.
Another absolute dating method is thermoluminescence, which dates the last time an item was heated.
It is the only method that can be used to date rocks, pottery and minerals for dates that are approximately between 300 to 10,000 years old.
This process frees energy in the form of light, which can be measured.