John Harrison's marine timekeeper H5
GPTKB entity
Statements (18)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
marine chronometer
|
| gptkbp:completedIn |
1772
|
| gptkbp:countryOfOrigin |
gptkb:United_Kingdom
|
| gptkbp:displayedAt |
gptkb:Science_Museum,_London
|
| https://www.w3.org/2000/01/rdf-schema#label |
John Harrison's marine timekeeper H5
|
| gptkbp:inventedBy |
gptkb:John_Harrison
|
| gptkbp:location |
gptkb:Worshipful_Company_of_Clockmakers_Museum
|
| gptkbp:material |
brass
|
| gptkbp:mechanismOfAction |
spring-driven
|
| gptkbp:notableFeature |
improved accuracy over H4
|
| gptkbp:predecessor |
gptkb:John_Harrison's_marine_timekeeper_H4
|
| gptkbp:purpose |
longitude determination at sea
|
| gptkbp:significance |
helped solve the longitude problem
|
| gptkbp:testedBy |
gptkb:King_George_III
|
| gptkbp:testLocation |
gptkb:Kew_Observatory
|
| gptkbp:testYear |
1772
|
| gptkbp:bfsParent |
gptkb:The_Clockmakers'_Museum
|
| gptkbp:bfsLayer |
5
|