Researchers at Stanford University are identifying hidden dangers beneath Earth’s surface in Southern California by measuring body waves from human activity on city streets and sidewalks.
Looking for global GIS data? Listed here are free sources for finding GIS data in both vector and raster formats including satellite imagery. Natural Earth World GIS Data This is probably one of the best sources for free global GIS data. The site was initiated in 2008 by Nathaniel Vaughn Kelso […]