Famous Scientists

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Across
  1. 3. XRAY
  2. 6. NUCLEARREACTOR
  3. 7. NEUTRON
  4. 9. RELATIVITY
  5. 12. COTTON GIN
  6. 14. CAR
  7. 17. ATOM
  8. 19. PHOTON
  9. 20. ELECTRICITY
  10. 21. MORSECODE
Down
  1. 1. AIRPLANE
  2. 2. TELESCOPE
  3. 4. LIGHTBULB
  4. 5. PROTON
  5. 8. GRAVITY
  6. 10. LAW-OF-MOTION
  7. 11. COMPUTERS
  8. 13. ELECTRON
  9. 15. QUANTUM
  10. 16. TELEPHONE
  11. 18. RADIUM