Statements (22)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:castle
|
| gptkbp:award |
gptkb:Longitude_Prize
|
| gptkbp:category |
gptkb:marine_chronometer
|
| gptkbp:firstCompleted |
1735
|
| gptkbp:inventedBy |
gptkb:John_Harrison
|
| gptkbp:location |
gptkb:Royal_Observatory,_Greenwich
gptkb:Science_Museum,_London |
| gptkbp:material |
brass
|
| gptkbp:mechanismOfAction |
bimetallic strip
grasshopper escapement remontoire |
| gptkbp:notableModel |
gptkb:H1
H3 H2 H4 H5 |
| gptkbp:purpose |
marine navigation
|
| gptkbp:significance |
enabled accurate sea navigation
|
| gptkbp:solvedBy |
longitude problem
|
| gptkbp:bfsParent |
gptkb:Nostell_Priory
|
| gptkbp:bfsLayer |
6
|
| https://www.w3.org/2000/01/rdf-schema#label |
John Harrison clock
|