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Compass

A compass is a device that shows the cardinal directions used for navigation and geographic orientation. It typically consists of a magnetized needle or another element, such as a compass card or compass rose, that pivots to align itself with magnetic north. Other methods may be used, including gyroscopes, magnetometers, and GPS receivers.

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Overview

History

Design

Variants

Construction

Use

Non-magnetic compasses

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Map overview Semantic statistics

Compass

Nodes121
Edges120
Triples181
Avg. degree1.98
Density0.016529
Components1

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Compass

Top relations

related to Further reading · 96
Compass → Aczel, Admiralty, Aerial Navigation, Alan, American, Amir, Arcy Paul, Bangkok, Berlin, Bibcode, Cambodia, Cathedral, Ch'eng-chün, Changed, Chapter XXV, Cleveland, Daguan, David, Ed, Encyclopedia
related to External links · 16
Compass → August, British Association At The, CompassEvening Lecture To The, Encyclopædia Britannica, Fourier, Friday, Gans, Handbook, Magnetic Compass Adjustment Archived, Mariner's, Refers, Southampton Meeting, The Medieval Technology Pages, VI, Vol, Wayback MachinePaul
related to Navigational compass · 11
Compass → China, Dry, Islamic, Medieval Europe, Shen Kuo, Some, Song, Southern India, The, These, This
related to Use · 9
Compass → By, Deviation, Except, In, Mariners, North, North Pole, They, Variation
related to Construction · 8
Compass → Earth's, For, However, If, It, Such, This, When
related to Design · 8
Compass → As, DOT, Key, Many, Modern, The, This, While
related to Non-magnetic compasses · 7
Compass → Earth, GPS-compass, Gyrocompasses, It, There, They, Two
see also · 7
Compass → Astrocompass, Chinese, Compact, Continuously, Navigational, Tool, Ways
related to Variants · 5
Compass → An, Consequently, Earth's, The, Thumb
is a · 4
Compass → device that shows the cardinal directions used for navigation and geographic orientation, most familiar compass type, turning error, type of compass commonly used in orienteering

Important terminology Word statistics

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Important terminology

magnetic compasses needle north map true used use direction also earth's iron often declination card bearing magnets navigation bearings field

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Compassis adevice that shows the cardinal directions used for navigation and geographic orientation0.90text
Compassis amost familiar compass type0.90text
Compassis aturning error0.90text
Compassis atype of compass commonly used in orienteering0.90text
inclinometers for measuring gradientsinstance ofand devices0.80text
isopar M or isopar L to limit the rapid fluctuationinstance ofMany marine compasses designed for use on boats with constantly shifting angles use dampening fluids0.80text
direction of the needle.The military forces of a few nationsinstance ofMany marine compasses designed for use on boats with constantly shifting angles use dampening fluids0.80text
notably the United States Armyinstance ofMany marine compasses designed for use on boats with constantly shifting angles use dampening fluids0.80text
continue to issue field compasses with magnetized compass dials or cards instead of needlesinstance ofMany marine compasses designed for use on boats with constantly shifting angles use dampening fluids0.80text
MRIsinstance ofLocal environments may contain magnetic mineral deposits and artificial sources0.80text
large iron or steel bodiesinstance ofLocal environments may contain magnetic mineral deposits and artificial sources0.80text
electrical engines or strong permanent magnetsinstance ofLocal environments may contain magnetic mineral deposits and artificial sources0.80text

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