A trio of researchers, two with the University of Salford, the third with English Heritage, has built a small-scale model of Stonehenge to test the acoustical properties of the ancient monument. In their paper published in the Journal of Archaeological Science, Trevor Cox, Bruno Fazenda and Susan Greaney describe their efforts to recreate the acoustic properties of Stonehenge back when it was new, and what they learned.
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Source: Phys.org