Statements (26)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
Optical instrument
|
| gptkbp:allows |
Viewing around corners
Viewing over obstacles |
| gptkbp:canBe |
Simple
Complex |
| gptkbp:category |
gptkb:military
gptkb:Optics Observation devices |
| gptkbp:consistsOf |
gptkb:Prisms
Mirrors |
| gptkbp:doNotRequire |
Direct line of sight
|
| https://www.w3.org/2000/01/rdf-schema#label |
Periscopes
|
| gptkbp:introducedIn |
19th century
|
| gptkbp:inventedBy |
gptkb:Jules_Carpentier
gptkb:Simon_Lake |
| gptkbp:relatedTo |
sunglasses
Telescopes |
| gptkbp:usedBy |
Military
Civilians |
| gptkbp:usedFor |
Observation from concealed or protected position
|
| gptkbp:usedIn |
Tanks
Submarines Armored vehicles Trenches |
| gptkbp:bfsParent |
gptkb:Prism
|
| gptkbp:bfsLayer |
5
|