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Laser beams shone down from the sky are revealing archaeological and other treasures hidden in Britain’s forests – by “seeing through” the trees. Scientists, archaeologists and foresters are using pulses of laser energy beamed down from aircraft flying about 1000 metres (3300 feet) up to reveal forests’ hidden secrets. These can include sites of ancient settlements, fortifications, farms and other signs of human activity which, in woodland, are often difficult to detect from the ground or the air with the naked eye.
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