Statements (23)
Predicate | Object |
---|---|
gptkbp:instanceOf |
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 |
https://www.w3.org/2000/01/rdf-schema#label |
Harrison's H1 clock
|
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
|