Moderate difficulty suitable for most players
Obscure Innovations of Bygone Eras
Moderate difficulty suitable for most players
1
2
3
4
5
6
7
8
9
Across
- 1. Early communication invention transmitting coded messages electrically
- 2. Early motion picture device for individual viewing
- 3. Ancient instrument used to measure the altitude of stars
- 5. Automatic orchestral machine popular in the 19th century
- 6. Pre-film animation device creating motion from spinning images
Down
- 4. World’s earliest device for recording sound waves
- 7. Mechanical model demonstrating planetary motions
- 8. Early steam-powered device sometimes called Hero’s engine
- 9. Navigation tool used to determine angle between celestial bodies
Similar Crossword Puzzles
- Perfect for beginners with simple, common vocabulary
- Moderate difficulty suitable for most players
- Perfect for beginners with simple, common vocabulary
- Discover intriguing inventions lost to time through this challenging crossword exploring forgotten innovations that shaped history.