Statements (22)
Predicate | Object |
---|---|
gptkbp:instanceOf |
gptkb:castle
|
gptkbp:award |
gptkb:Longitude_Prize
|
gptkbp:category |
marine chronometer
|
gptkbp:firstCompleted |
1735
|
https://www.w3.org/2000/01/rdf-schema#label |
John Harrison clock
|
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
|