By integrating satellite mapping, airborne-laser technology, and ground-based plot surveys, scientists from the Carnegie Institution's Department of Global Ecology, with colleagues from the World Wildlife ...

Space & Earth - Earth Sciences

Sep 06, 2010 4.1 / 5 (8) 1 |

By combining the best of two different distance measurement approaches with a super-accurate technology called an optical frequency comb, researchers at the National Institute of Standards and Technology have built a laser ...

Physics - Optics & Photonics

May 24, 2009 5 / 5 (10) 1