Noun
compass based on an indicator (as a magnetic needle) that points to the magnetic north
Source: WordNetHikers and mountain climbers use wrist-mounted or hand-held altimeters, in addition to other navigational tools such as a map, magnetic compass, or GPS receiver. Source: Internet
Construction of a magnetic compass Magnetic needle A magnetic rod is required when constructing a compass. Source: Internet
Galvanometers developed from the observation that the needle of a magnetic compass is deflected near a wire that has electric current flowing through it, first described by Hans Oersted in 1820. Source: Internet
Kreutz, p. 370 mainMagnetic compass A military compass that was used during World War I The magnetic compass is the most familiar compass type. Source: Internet
Limitations of the magnetic compass The compass is very stable in areas close to the equator, which is far from "magnetic north". Source: Internet
The deflection of a magnetic compass needle by current in a wire was first described by Hans Oersted in 1820. Source: Internet