A user-created map overlay of the Fertile Crescent as discussed in Jared Diamond's book Guns, Germs, and Steel (Google Earth Community, 2010). Visualizations.
NOAA/NSTA Web Seminar: GPS and Geodesy LIVE INTERACTIVE LEARNING @ YOUR DESKTOP Thursday, April 19, 2007 7:00 p.m. to 8:00 p.m. Eastern time.