Surprising Discovery: How Neolithic paintings and echoes created prehistoric 'surround sound'
A recent study by researchers from the University of Helsinki unveiled the unique acoustic properties of prehistoric rock art ...
来自MSN7 个月
Hiker's casual description of daring cliff-side rescue
He was 'ragdolled' by the angry waves before being washed up on a rocky ledge around 20 metres below the Eagle Rock cliff face ... abseiled down the jagged cliff face to help move Mr Hart ...