The oldest and most familiar type of compass is the magnetic compass, which is used in different forms in aircraft, ships, and land vehicles and by surveyors. Sometime in the 12th century, mariners in China and Europe made the discovery, apparently independently, that a piece of more...
The C2 Compass is a miniature hand-held battery-operated eight-point compass with digitized voice output. The compass is contained in a semi-transparent light-blue enclosure. At the top there is the speaker and the activation button. A three-position slide switch on the side is umore...
