Dating techniques for ceramics

The use of ovens added new possibilities to the development of pottery.

Around the same time, some areas of South America were also developing pottery technology.

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Not all types of clay can stand temperatures this high -- only some special types of clay which are largely free of impurities.

By analysing the chemical composition of pottery fragments, it is possible to determine at what temperature the pottery was exposed, and therefore we can understand the level of technological sophistication of a society, at least in terms of their firing capabilities.

Enclosing the pottery inside a chamber results in key advantages: the temperatures that can be achieved are higher, last longer, and the heat can be controlled more efficiently.

The simplest forms of kilns are pit kilns, which is a pit fire installation where the fuel is placed at the bottom, followed by the pottery, and more fuel in the upper layer.

In Ancient China, firing techniques allowed temperatures of about 1300-1400 degrees Celsius and even higher in some cases.

At these temperatures, the mineral components of clay melt, resulting in a thin, translucent, white vitrified type of ceramic that is known as porcelain.Nuclear Physics is the study of the properties and behaviour of nuclei and particles, ranging from tiny quarks to giant explosions deep in space.Nuclear physics is important in a vast variety of situations, from understanding how the Sun provides the energy for life on this planet, to nuclear power plants and radiation therapy.We can date pottery based on a stratigraphic sequence: this means that during an excavation, archaeologists study the different layers of soil and analyse how the different objects found in them relate to one another.If the layers are undisturbed, then we know that objects found in the lower layers are older than those located in the upper layers.Plus, the site is extremely easy to use, to encourage pupils to explore the information here on their own.

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