Out Of Many, One by Jorge Rodriguez-Gerada is a large-scale portrait, made of sand and soil, temporarily displayed on the National Mall for the month of October.

Given the enormous popularity of GPS among civilian users, and the critical applications for the military, it is not surprising that a large body of literature has arisen about the origins of this remarkable technology. The curators of the new Time and Navigation exhibition discuss this history, and we have illustrated it with a few select artifacts, such as the engineering model of the Navy’s NTS-2 satellite, one of the key demonstrators of the technology that led to the deployment of the GPS constellation.

One of the jokes I inherited from my student years is the final exam question "Describe the Universe" which was followed by "and give two examples."

Preparation of the upcoming Time and Navigation exhibition is in full swing, and objects are being installed in cases throughout the gallery.  In fact, the gallery became a little more shiny just in time for the holiday season thanks to a delivery from our friends at the Naval Research Laboratory.

“Are you sure you want to donate this?” I asked the intern. “This” was a slightly-used Smartphone, in perfect working condition. The intern, Rebecca Bacheller, was, indeed, willing to donate it. She heard that the Time and Navigation team wanted to disassemble one and showcase the current state of geolocation devices, enabled by the Global Positioning System and other advanced electronics. Our plan was to label the phone’s circuits, and show how they correspond to classical methods of navigation that had been practiced for centuries. Becky was excited that she would be credited in the label; she also had another motive: namely a reason to trade up to the newest version of the popular phone.