Statements (22)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
marine chronometer
|
| gptkbp:accuracy |
within 1 second per day
|
| gptkbp:awardYear |
gptkb:Longitude_Prize_(partial_award)
|
| gptkbp:balanceWheel |
bimetallic
|
| gptkbp:designedBy |
gptkb:John_Harrison
|
| gptkbp:diameter |
13 cm
|
| gptkbp:displayedAt |
gptkb:Royal_Observatory,_Greenwich
|
| gptkbp:escapement |
detent escapement
|
| gptkbp:fundedBy |
gptkb:Board_of_Longitude
|
| https://www.w3.org/2000/01/rdf-schema#label |
H4 marine chronometer
|
| gptkbp:influenced |
development of marine navigation
|
| gptkbp:legacy |
enabled accurate navigation at sea
|
| gptkbp:location |
gptkb:Royal_Observatory,_Greenwich
|
| gptkbp:material |
brass
|
| gptkbp:mechanismOfAction |
spring-driven watch
|
| gptkbp:notableFeature |
first successful marine timekeeper
|
| gptkbp:purpose |
solving the problem of determining longitude at sea
|
| gptkbp:testedBy |
gptkb:voyage_to_Jamaica_(1761-1762)
|
| gptkbp:weight |
1.45 kg
|
| gptkbp:yearCompleted |
1761
|
| gptkbp:bfsParent |
gptkb:John_Harrison
|
| gptkbp:bfsLayer |
6
|