Statements (18)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:early_radar_device
|
| gptkbp:countryOfOrigin |
gptkb:Germany
|
| gptkbp:demonstrates |
gptkb:Rhine_River
|
| gptkbp:displayType |
bell signal
|
| gptkbp:exhibitedAt |
Düsseldorf Industrial Exhibition
|
| gptkbp:historicalSignificance |
precursor to modern radar
|
| gptkbp:introducedIn |
1904
|
| gptkbp:inventedBy |
gptkb:Christian_Hülsmeyer
|
| gptkbp:notableFeature |
could detect metal objects through fog
|
| gptkbp:patent |
gptkb:Germany
DE165546 |
| gptkbp:purpose |
detect ships using radio waves
|
| gptkbp:range |
up to 3 km
|
| gptkbp:technology |
radio wave detection
|
| gptkbp:usedFor |
collision avoidance
|
| gptkbp:bfsParent |
gptkb:Christian_Hülsmeyer
|
| gptkbp:bfsLayer |
7
|
| http://www.w3.org/2000/01/rdf-schema#label |
Telemobiloscope
|