Multimedia Gallery
- Media Type: Artifact
A standard military drift sight through the World War II and early Cold War eras.
One of the first effective models of bubble sextant for aeronautical use.
These aircraft served as flying classrooms for training U.S. Army Air Forces navigators in World War II.
Earhart used an antenna similar to this later model in her attempt to locate Howland Island.
A maritime sextant with a special bubble attachement to the eyepiece to aid in establishing a horizon in aeronautical use, circa 1919.
Weems used this sextant in training Charles Lindbergh and Lincoln Ellsworth.
A shortcut method of speeding up celestial computations.
This mechanical cassette was used with the Fairchild-Maxson Line of Position Computer.
A cesium clock like this was tested on the NTS-2 satellite to see if clocks could keep accurate time in space.
This atomic clock was built for the first GPS satellites in the late 1970s.