Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
scientific instrument
|
| gptkbp:alsoKnownAs |
reflecting quadrant
|
| gptkbp:angleRange |
0 to 90 degrees
|
| https://www.w3.org/2000/01/rdf-schema#label |
Hadley octant
|
| gptkbp:inventedBy |
gptkb:John_Hadley
1731 |
| gptkbp:material |
ivory
wood |
| gptkbp:predecessor |
sextant
|
| gptkbp:usedFor |
gptkb:navigation
measuring angles |
| gptkbp:bfsParent |
gptkb:John_Hadley
|
| gptkbp:bfsLayer |
7
|