Multimedia Gallery
- Media Type: Artifact
Set in an electrical circuit, a crystal resonator vibrates regularly and becomes an oscillator to control radio frequencies.
NASA planned to place the Ranger 1 satellite into an elliptical orbit around Earth, but it never reaching its intended orbit.
Replica of Ranger 7 lunar probe made from parts of test vehicles. Replica is on display in the National Air and Space Museum.
This is a typical radio range receiver used in the late 1930s on private airplanes.
This atomic clock was built for the first GPS satellites in the late 1970s.
The Seiko Epson Digital Assistant was one of the earliest devices to incorporate GPS navigation with communication features.
Sextant, made by Jesse Ramsden, last quarter of 18th century.
One of six ships of the U.S. Exploring Expedition, the Porpoise sailed around the world between 1838 and 1842.
The components pictured here are just part of the Ship’s Inertial Navigation System (SINS) used to steer submarines such as the USS Alabama.