Antikythera Mechanism

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Across
  1. 4. very good or unusual
  2. 5. a system for organizing days and months
  3. 6. an object used to do work
  4. 8. a device that measures time
  5. 11. ancient writing carved on something
  6. 13. finding something new
  7. 17. to confuse someone
  8. 18. an idea that explains how things happen
  9. 19. something strange or unclear
  10. 20. the study of past events
  11. 21. something difficult to understand or solve
  12. 23. a machine that produces movement
Down
  1. 1. careful study to learn about something
  2. 2. a carved figure of a person or animal
  3. 3. a scientist who studies ancient objects
  4. 7. valuable objects such as gold or jewels
  5. 8. damaged by rust or age
  6. 9. the study of the natural world
  7. 10. very old
  8. 12. the level of exactness
  9. 14. facts that help to prove something
  10. 15. goods carried by a ship
  11. 16. a set of parts working together
  12. 21. a large body that orbits a star
  13. 22. circle of star signs