boulders

‘Rock clocks’ made from balanced boulders improve the accuracy of earthquake forecasts

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Delicately balanced boulders have been used to create a ‘rock clock’ that can improve the accuracy of earthquake severity predictions by up 50 per cent.  Imperial College London researchers created a new severe earthquake forecasting model using information from formations of precariously balanced rocks (PBRs). PBRs, rock formations where a ‘slender boulder’ is delicately perched … Read more

Most of Stonehenge’s sandstone boulders were transported from just 15 miles to the north

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Most of Stonehenge’s hulking sandstone boulders were transported from Wiltshire’s West Woods — just 15 miles north of Salisbury Plain, a study has revealed. Experts led from the University of Brighton uncovered the the origin of the ‘sarsen’ stones thanks in part to a sample of the monument recently returned from the US.  The core … Read more