Multimedia Gallery
A Smithsonian researcher using high-precision GPS to survey a sand dune.
Length: 2 Minutes, 17 Seconds
A tactical unmanned aerial vehicle for providing close observation in hazardous situations.
A horary quadrant is used to find the time of day by measuring the Sun’s altitude.
The U.S. Exploring Expedition included a formidable group of botanists, naturalists, artists, taxidermists, and other scientists.
This sketch shows how the images of a star field and a globe were superimposed over what the astronaut observed through the window.
How did the USS Alabama navigate?
From maintaining infrastructure, transporting goods, delivering services, or just meeting friends, people often use technology just as sophisticated as that used by pilots and soldiers. How does it work?
The NIST-7 provided a standard frequency rather than the time of day.
Length: 1 Minute, 8 Seconds
