Moderate difficulty suitable for most players
Forgotten Wonders of Mechanical Innovation
Explore a crossword featuring 15 obsolete inventions that once shaped history but have now faded into obsolescence.
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15
Across
- 1. Early firearm ignition system using sparks
- 2. Tube system used for sending messages in cities
- 3. Invented by Edison to play recorded sound
- 8. Early device for transmitting coded messages over wires
- 11. Printer and keyboard device for telegraph messages
- 12. Instrument for navigation by measuring celestial angles
- 13. Type of telephone dial that spins
Down
- 4. Sony's videotape format overshadowed by VHS
- 5. Early motion picture camera and projector
- 6. Traditional writing tool before fountain pens
- 7. Mechanical writing device replaced by computers
- 9. Rigid airship popular before airplanes
- 10. Early movie viewer using flipping cards
- 14. Copying process once used for technical drawings
- 15. Incorrect variation and not an invention
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