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By comparing this light output with that produced by known doses of radiation, the amount of radiation absorbed by the material may be found.

Most mineral materials, including the constituents of pottery, have the property of thermoluminescence (TL), where part of the energy from radioactive decay in and around the mineral is stored (in the form of trapped electrons) and later released as light upon strong heating (as the electrons are detrapped and combine with lattice ions).

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To do this, researchers determine the area of reach (boundary envelope) and move the work space to optimize these cost functions (Abdel-Malek, Yang, 2004). Imagine a coordinate system originating at each joint and motion constraints depending on the magnitude and range of the vectors (limb portions).

The radiocarbon dating method is based on the fact that radiocarbon is constantly being created in the atmosphere by the interaction of cosmic rays with atmospheric nitrogen.

The resulting radiocarbon combines with atmospheric oxygen to form radioactive carbon dioxide, which is incorporated into plants by photosynthesis; animals then acquire in a sample from a dead plant or animal such as a piece of wood or a fragment of bone provides information that can be used to calculate when the animal or plant died.

Rachel Wood does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond the academic appointment above.

Australian National University provides funding as a member of The Conversation AU.

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