Statements (35)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:communication
|
| gptkbp:alsoKnownAs |
gptkb:semaphore_telegraph
|
| gptkbp:alternativeName |
optical_telegraph
telegraph_company telegraph_service telegraph_station telegraph_system transatlantic_telegraph_cable |
| gptkbp:category |
telecommunications
history of communication |
| gptkbp:component |
gptkb:castle
shutters movable arms |
| gptkbp:distance |
line of sight
|
| gptkbp:historicalPeriod |
18th century
19th century |
| gptkbp:inventedBy |
gptkb:Claude_Chappe
1792 |
| gptkbp:messageType |
coded signals
|
| gptkbp:notableExample |
gptkb:Chappe_telegraph
gptkb:Murray_shutter_telegraph gptkb:Swedish_telegraph |
| gptkbp:operatedBy |
human operators
|
| gptkbp:replacedBy |
gptkb:electric_telegraph
|
| gptkbp:technology |
visual signaling
|
| gptkbp:usedFor |
long-distance communication
|
| gptkbp:usedIn |
gptkb:Britain
gptkb:France gptkb:Russia gptkb:Sweden |
| gptkbp:bfsParent |
gptkb:American_industrial_revolution
gptkb:Industrial_Revolution gptkb:Sir_William_Thomson_(Lord_Kelvin) gptkb:Samuel_F._B._Morse |
| gptkbp:bfsLayer |
4
|