Diamonds and carbon dating
From these records a “calibration curve” can be built (see figure 2, below).
A huge amount of work is currently underway to extend and improve the calibration curve.
This method requires less than 1g of bone, but few countries can afford more than one or two AMSs, which cost more than A0,000.
Australia has two machines dedicated to radiocarbon analysis, and they are out of reach for much of the developing world.
Moving away from techniques, the most exciting thing about radiocarbon is what it reveals about our past and the world we live in.
View the full list Radiocarbon dating has transformed our understanding of the past 50,000 years.
In this way large domed tombs (known as tholos or beehive tombs) in Greece were thought to predate similar structures in the Scottish Island of Maeshowe.