GECOW

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Across
  1. 3. pocked orb
  2. 4. the infirm pachyderm contains a
  3. 5. tail wagging the dog
  4. 9. Shift. of course
  5. 10. by hand. techne
  6. 13. hoist the sun
  7. 15. electricity
  8. 16. Shock city
  9. 17. Make nature take a detour
  10. 20. of mass. don't cook the book
  11. 21. measure by shadow
  12. 22. Knowledge by thought
  13. 24. first electrified city
  14. 25. can be put back together again
Down
  1. 1. Took center stage
  2. 2. inconvenient truths
  3. 6. before understanding
  4. 7. oxidize
  5. 8. thought so
  6. 11. The tarot's spoiler
  7. 12. after understanding
  8. 14. Galileo's moon
  9. 18. obscura. augmented light box
  10. 19. first compass
  11. 23. curves. noisy data