Where could Physics take you?

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Across
  1. 2. designs aeroplanes and helicopters
  2. 3. invent and build machines and structures
  3. 4. teaches physics
  4. 7. works with nuclear energy
  5. 8. studies physical science
  6. 9. takes images with radiology
Down
  1. 1. treats patients with radiology
  2. 2. mends aeroplanes and helicopters
  3. 5. studies the stars
  4. 6. flys aeroplanes