Statements (68)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:hospital
|
| gptkbp:bfsLayer |
4
|
| gptkbp:bfsParent |
gptkb:Herbie_Hancock
|
| gptkbp:composed_of |
gptkb:museum
gptkb:item |
| gptkbp:first_introduced |
gptkb:18th_century
|
| gptkbp:has_part |
gptkb:story_arc
vernier scale horizon mirror index mirror |
| https://www.w3.org/2000/01/rdf-schema#label |
Sextant
|
| gptkbp:invention |
John Hadley
|
| gptkbp:is_a |
precision instrument
|
| gptkbp:is_analyzed_in |
gptkb:Position
gptkb:mythological_figure latitude angular distance longitude solar noon horizontal angles vertical angles altitude of celestial bodies celestial navigation position course corrections distance to horizon known stars sight reduction |
| gptkbp:is_associated_with |
gptkb:spacecraft
seafaring |
| gptkbp:is_available_in |
various sizes
|
| gptkbp:is_considered |
an essential tool
a mechanical device a traditional tool a historical tool a backup tool |
| gptkbp:is_observed_in |
gptkb:planet
stars sun |
| gptkbp:is_part_of |
gptkb:musician
celestial navigation navigation equipment navigation toolkit navigation history nautical science |
| gptkbp:is_used_by |
gptkb:aircraft
gptkb:football_club gptkb:Politician |
| gptkbp:is_used_for |
measuring angles
|
| gptkbp:is_used_in |
gptkb:Research_Institute
oceanography maritime history maritime navigation air navigation commercial shipping geodesy yachting aerospace navigation military navigation modern GPS navigation |
| gptkbp:maintenance |
regular calibration
|
| gptkbp:measures |
altitude
celestial bodies |
| gptkbp:operated_by |
gptkb:sports_event
|
| gptkbp:operates_in |
two hands
|
| gptkbp:requires |
line of sight
|
| gptkbp:training |
navigation courses
|
| gptkbp:used_in |
gptkb:hospital
|
| gptkbp:works_to |
0.1 arc minutes
|