Archaeology turns to superconductivity (PhysicsWeb)
6 August 2003
Researchers from Israel have developed a new way to date archaeological objects that is based on superconductivity. The new technique relies on measuring the magnetic signal from lead - which was widely used in antiquity - in samples that have been cooled to cryogenic temperatures. The method could be used to date pipes, coins, bottles and other objects (S Reich et al. 2003 New J. Phys 5 99)
The tests were done on samples from Tel Dor, Israel, which had previously been dated by other means to dates ranging from the Persian Period to the time of the Crusaders.