Magnetic Compass

GPTKB entity

Properties (50)
Predicate Object
gptkbp:instanceOf gptkb:Public_transportation_system
gptkbp:aimsTo gptkb:Magnetic_North
gptkbp:composedOf Magnetized needle
gptkbp:hasAccessTo ±1° to ±5°
https://www.w3.org/2000/01/rdf-schema#label Magnetic Compass
gptkbp:isAttendedBy Magnetic declination
Nearby metal objects
gptkbp:isAvailableIn Various designs
Various sizes
Digital_formats
gptkbp:isConsidered An essential tool
A fundamental navigational device
A historical invention
A reliable tool
gptkbp:isLocatedIn gptkb:Gyrocompass
gptkbp:isMonitoredBy gptkb:China
gptkbp:isNotableFor Polar regions
gptkbp:isOftenMadeWith Maps
GPS devices
Altimeters
Other navigational aids
gptkbp:isPartOf Outdoor gear
Aviation equipment
Survival kits
Marine_equipment
gptkbp:isRated Weather conditions
GPS signal
gptkbp:isSubjectTo Environmental factors
User error
Magnetic interference
gptkbp:isUsedBy Pilots
Sailors
Hikers
Determine direction
Find bearings
Navigate terrain
Plot courses
gptkbp:isUsedFor Brass
Plastic
Wood
gptkbp:isUsedIn Surveying
Orienteering
Military operations
Maritime navigation
Geocaching
Aviation navigation
Land navigation
gptkbp:isVisitedBy Local magnetic interference
gptkbp:requires Calibration
gptkbp:uses Earth's_magnetic_field