Blog Editor's Note: This is the fourth of four articles Katherine Dunn published last week as part of the Fortune series "When GPS Goes Wrong." This article recounts a project by DLR, the German Aerospace Center, to assess maritime GPS disruption in various areas -...

Blog Editor's Note: For more GPS history, as well as an interesting discussion of Skinnerarian behavior changes it has wrought in people, we recommend "Pinpoint, how GPS is changing technology, culture, and our minds" by Greg Milner.  INTERNATIONAL GLOBAL TRADE How...

A conceptual diagram that shows how GPS triangulation works. Up to 4 of the 24 satellites in orbit transmit position and time signals that allow each user or device to determine its location.UNIVERSAL HISTORY ARCHIVE/UNIVERSAL IMAGES GROUP VIA GETTY IMAGES Blog...

Photo-Illustration by Tres Commas; Original Photo: Nucha Sirivisansuwan—Moment/Getty Images   Blog Editor's Note: A good article with lots of case studies and examples. We consulted with Katherine Dunn and provided a lot of background for this well researched...