CrosswordMint
Inventive Relics of Bygone Eras
Moderate difficulty suitable for most players
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Across
  • 1. Instrument used by ancient sailors to determine latitude
  • 2. Early flight device filled with hot air or gas
  • 3. To move, basis for early steam-powered transport engines
  • 4. Mechanical wheels with teeth integral to ancient machinery
  • 6. An early roller skate from 18th-century France
  • 9. A primitive counting system using marked sticks
  • 11. A musical instrument that uses flames for sound
  • 12. Small, fast sailing ship developed in the 15th century
  • 13. Historical firearm ignition system predating the modern trigger
  • 15. Shortened term hinting at early messaging systems using signals
Down
  • 5. Refers to threads or fibers, key in ancient textile inventions
  • 7. Greek scholar who invented the first known system to measure Earth's circumference
  • 8. Process to harden rubber, pioneered in the 19th century
  • 10. Hero of steam power, an ancient rotating steam engine
  • 14. Relating to air or gas pressure, used in forgotten machine designs
  • 16. Ancient Greek device considered a predecessor of the fire extinguisher
  • 17. Describes an early battery developed by Alessandro Volta
  • 18. A predecessor wind instrument, ancient single-reed woodwind

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