Challenge students with this medium-difficulty crossword focused on forgotten tools and equipment. Perfect for educators discussing historical inventions and archaic devices.
Arcane Innovations of Lost Eras is a hard crossword puzzle with 20 clues covering . Play it online for free below, or create your own crossword with our free crossword maker.
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Arcane Innovations of Lost Eras
Challenging puzzle for experienced crossword solvers
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Across
- 1. Forgotten apparatus employing vortex principles for flight
- 2. Neglected tool for iron-scale extraction in metallurgy
- 3. Obsolete vacuum tube for microwaves before solid-state tech
- 4. Defunct video camera tube replaced by solid-state sensors
- 5. Engineering term describing materials with lost invention roots
- 7. Lost solar communication device using reflected mirrors
- 10. Forgotten 19th-century mechanical blood purifier device
- 13. Mythical multi-dimensional machine rumored in early sci-fi
- 17. Conductor in archaic telegraphy and early electrotherapy
- 19. Obsolete incendiary projectile used in 1800s warfare
Down
- 6. Forgotten apparatus for recording clandestine communications
- 8. Defunct spherical locking mechanism of medieval origin
- 9. Ancient contrivance supposedly to amplify candle light
- 11. Early device for engraving wood with controlled heat
- 12. 19th-century remotely operated mechanical automaton
- 14. Early apparatus for selective molecular filtration
- 15. Ancient Greek analog computer for celestial prediction
- 16. Early 19th-century human-powered velocipede predecessor
- 18. Ancient pneumatic organ predating modern air instruments
- 20. Disused device for auditory enhancement in noisy factories
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