Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:marine_chronometer
|
| gptkbp:countryOfOrigin |
gptkb:United_Kingdom
|
| gptkbp:displayedAt |
gptkb:Royal_Observatory,_Greenwich
|
| gptkbp:followedBy |
gptkb:Harrison's_H2_clock
|
| gptkbp:hasComponent |
bimetallic strip
remontoire anti-friction wheels |
| gptkbp:inventedBy |
gptkb:John_Harrison
|
| gptkbp:location |
gptkb:Royal_Observatory,_Greenwich
|
| gptkbp:material |
brass
|
| gptkbp:mechanismOfAction |
spring-driven
oscillating bar balances |
| gptkbp:purpose |
solving the longitude problem
|
| gptkbp:relatedTo |
longitude prize
|
| gptkbp:significance |
first successful marine timekeeper
|
| gptkbp:testedBy |
gptkb:Royal_Navy
|
| gptkbp:testLocation |
Lisbon voyage
|
| gptkbp:testYear |
1736
|
| gptkbp:weight |
34 kg
|
| gptkbp:yearCompleted |
1735
|
| gptkbp:bfsParent |
gptkb:John_Harrison's_grasshopper_escapement
|
| gptkbp:bfsLayer |
8
|
| https://www.w3.org/2000/01/rdf-schema#label |
Harrison's H1 clock
|