Harrison's marine chronometer
GPTKB entity
Statements (28)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:marine_chronometer
|
| gptkbp:accuracy |
within a few seconds over weeks at sea
|
| gptkbp:award |
Longitude prize
|
| gptkbp:awardedBy |
gptkb:Board_of_Longitude
|
| gptkbp:category |
gptkb:scientific_instrument
gptkb:navigation |
| gptkbp:displayedAt |
gptkb:National_Maritime_Museum
|
| gptkbp:first_successful_model |
H4
|
| gptkbp:hasModel |
gptkb:H1
H3 H2 H4 |
| gptkbp:influenced |
development of marine navigation
|
| gptkbp:inventedBy |
gptkb:John_Harrison
1761 |
| gptkbp:location |
gptkb:Royal_Observatory,_Greenwich
|
| gptkbp:material |
brass
|
| gptkbp:mechanismOfAction |
escapement
remontoire spring balance temperature compensation |
| gptkbp:purpose |
determine longitude at sea
|
| gptkbp:significance |
solved longitude problem
|
| gptkbp:used_in |
gptkb:Royal_Navy
James Cook |
| gptkbp:bfsParent |
gptkb:Pendulum_clock
|
| gptkbp:bfsLayer |
8
|
| https://www.w3.org/2000/01/rdf-schema#label |
Harrison's marine chronometer
|