British researchers, reporting in the journal Time & Mind: the Journal of Archaeology, Consciousness and Culture, may have cracked the mystery of why the builders of Stonehenge chose to haul some of its giant bluestones 320 km away from Wales to Salisbury Plain.
Their pilot study is focused on bluestones in the Carn Menyn Ridge, Preseli Hills, south-west Wales, the source area of some of the Stonehenge bluestones.
According to local legend, the bluestones possess magical and healing properties. But what Dr Paul Devereux and Dr Jon Wozencroft from London’s Royal College of Art have now discovered are the extraordinary ‘sonic properties’ of these stones, which might have led to their use in Stonehenge.
After testing over 1,000 stones at points all along the Carn Menyn Ridge, they found that on average, between 5-10 percent of the rocks ‘ring’ when hit. In localized places, the figure rises to 15–20 percent, ‘with a few very small hotspots up to double that percentage again.