36a

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Across
  1. 1. Contribution to physics.
  2. 5. Appliance innovation.
  3. 6. Cleaning device by Hubert Cecil Booth.
  4. 8. Pill development participation.
  5. 10. Developed by Charles Parsons.
  6. 12. Fastening device popularized.
  7. 14. Cooling system improvements.
  8. 17. Formulated by Isaac Newton.
  9. 19. Cooking appliance refinement.
  10. 22. Early design by Robert Goddard.
  11. 23. Aviation and defense tool.
  12. 24. Early plastic by Leo Baekeland.
  13. 25. Achieved by Ernest Rutherford.
Down
  1. 2. Appliance for clothes by Henry W. Seeley.
  2. 3. Concept by Stephen Hawking.
  3. 4. Military vehicle first used in WWI.
  4. 7. Developed by William Crookes.
  5. 9. Component by Robert Hooke.
  6. 11. Construction equipment innovation.
  7. 13. Framework by Dmitri Mendeleev.
  8. 15. Firearm refinement.
  9. 16. Medical advancement in surgery.
  10. 18. Discovered by William Ramsay.
  11. 20. Rubber process improvement.
  12. 21. Communications technology.