Laser scanning reveals 'lost' ancient Mexican city had as many buildings as Manhattan

Groundbreaking lidar scanning reveals the true scale of Angamuco, built by the Pur épecha from about 900ADArchaeology might evoke thoughts of intrepid explorers and painstaking digging, but in fact researchers say it is a high-tech laser mapping technique that is rewriting the textbooks at an unprecedented rate.The approach, known as light detection and ranging scanning (lidar) involves directing a rapid succession of laser pulses at the ground from an aircraft.Continue reading...
Source: Guardian Unlimited Science - Category: Science Authors: Tags: Archaeology Mapping technologies Mexico Science Americas World news Technology Source Type: news