Statements (17)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:ancient_Greek_surveying_instrument
|
| gptkbp:component |
graduated scale
pivoting arm sighting rods |
| gptkbp:describedBy |
gptkb:Hero_of_Alexandria
|
| gptkbp:material |
gptkb:wood
bronze |
| gptkbp:originatedIn |
gptkb:ancient_Greece
|
| gptkbp:predecessor |
gptkb:theodolite
|
| gptkbp:usedBy |
Greek astronomers
Greek surveyors |
| gptkbp:usedFor |
astronomical observations
measuring angles surveying land |
| gptkbp:bfsParent |
gptkb:Hipparchus
|
| gptkbp:bfsLayer |
5
|
| http://www.w3.org/2000/01/rdf-schema#label |
dioptra
|