Ricoh adds a 3-axis compass, called an SE-3 GPS module, to its 500SE GPS camera, such that it displays the position and azimuth of the camera on its liquid crystal display. The military ...

Key point: Russia’s tanks don’t have state-of-the-art communication and navigation systems. One of the U.S. military’s biggest advantages is the navigation system used by its mechanized forces.

II. AN important objection was made to me some years ago by Capt. Evans against the use of quadrantal correctors in the Navy, that they would prevent the taking of bearings by the prismatic azimuth ...