Statements (19)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:scientific_instrument
|
| gptkbp:alsoKnownAs |
magnetic compass
|
| gptkbp:category |
gptkb:scientific_instrument
gptkb:navigation maritime technology |
| gptkbp:component |
gptkb:gimbal
housing magnetized needle compass card lubber line |
| gptkbp:inventedBy |
gptkb:China
11th century |
| gptkbp:principle |
magnetism
|
| gptkbp:replacedBy |
gyrocompass
electronic compass |
| gptkbp:shows |
direction relative to Earth's magnetic poles
|
| gptkbp:usedBy |
mariners
|
| gptkbp:usedFor |
gptkb:navigation
|
| http://www.w3.org/2000/01/rdf-schema#label |
Mariner's Compass
|