Statements (18)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:scientific_instrument
|
| gptkbp:alternativeName |
parallactic ruler
|
| gptkbp:depictedIn |
gptkb:De_revolutionibus_orbium_coelestium
|
| gptkbp:hasPart |
three arms
|
| gptkbp:material |
gptkb:metal
gptkb:wood |
| gptkbp:notableUser |
gptkb:Tycho_Brahe
gptkb:Claudius_Ptolemy |
| gptkbp:originatedIn |
gptkb:ancient_Greece
|
| gptkbp:replacedBy |
gptkb:sextant
quadrant |
| gptkbp:usedFor |
astronomical observations
measuring angles |
| gptkbp:usedIn |
medieval astronomy
Renaissance astronomy |
| gptkbp:bfsParent |
gptkb:Carpus
|
| gptkbp:bfsLayer |
7
|
| https://www.w3.org/2000/01/rdf-schema#label |
triquetrum
|