A crossword exploring rare and unusual instruments used throughout history for communication.
Ancient to Esoteric Communication Tools
Explore 13 rare and fascinating instruments used throughout history to convey messages across distances and cultures.
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Across
- 1. Early acoustic device to amplify the human voice
- 2. Early electrical communication device transmitting coded signals
- 3. Ancient Chinese signal drum used for communication
- 5. A rare early Spanish telegraph system using fire signals
- 6. Message conveyed through controlled puffs of smoke
- 10. Visual signaling system with flags or arms
Down
- 4. Pre-Columbian wind instrument used to send messages
- 7. Communication by modulated whistle sounds
- 8. Visual signaling system using different colored flags
- 9. West African drum replicating speech patterns
- 11. Message delivery using trained homing birds
- 12. Beating patterns used to communicate over distances
- 13. Instrument signaling with sunlight and mirrors
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