Inventors

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Across
  1. 2. Revolutionized car production with the assembly line,
  2. 5. Developed a powerful vacuum cleaner,
  3. 6. Inventor of the light bulb,
  4. 9. Created the first practical pencil sharpener,
  5. 10. Developed wireless telegraphy,
  6. 11. Cracked the Enigma code in WWII,
  7. 13. Revolutionized vacuum technology,
  8. 15. Developed the first breakfast cereal,
  9. 18. Invented the trampoline,
  10. 19. Developed the telegraph and Morse code,
  11. 21. Discovered electromagnetic induction,
  12. 22. Developed the theory of relativity,
  13. 26. Helped discover insulin,
  14. 28. Invented Graham crackers and promoted healthy eating,
  15. 32. Developed rocket technology,
  16. 33. Developed the first computer compiler,
  17. 34. Invented the first battery,
  18. 37. Invented dynamite and founded a prize,
  19. 40. Invented the famous puzzle cube,
  20. 45. Built the first practical locomotive,
  21. 47. Founded a famous bicycle company,
  22. 48. Invented the modern pencil,
Down
  1. 1. Experimented with electricity and lightning,
  2. 2. Built the first successful steamboat,
  3. 3. Fastening device invented by Gideon Sundback,
  4. 4. Created a steel-making process,
  5. 7. Developed the diesel engine,
  6. 8. VINCI, Designed early flying machines,
  7. 9. Created a reading system for the blind,
  8. 12. Considered the first computer programmer,
  9. 14. Developed pasteurization and vaccines,
  10. 16. Invented the printing press,
  11. 17. Co-founded Apple and pioneered personal computers,
  12. 20. Developed an early mechanical calculator,
  13. 23. Invented the first practical photography process,
  14. 24. Created the first ballpoint pen,
  15. 25. Improved the steam engine,
  16. 27. Invented the safety razor,
  17. 29. Developed the polio vaccine,
  18. 30. Invented the internal combustion engine,
  19. 31. Developed hundreds of uses for peanuts,
  20. 32. Pioneered frozen food technology,
  21. 35. Pioneer of alternating current electricity,
  22. 36. Known as the father of modern chemistry,
  23. 38. Discovered radium and polonium,
  24. 39. Created a famous repeating rifle,
  25. 41. Co-founder of the fast-food empire,
  26. 42. Invented the cotton gin,
  27. 43. COIL, High-voltage invention by Nikola Tesla,
  28. 44. Created the first electric razor,
  29. 46. Inventor of the telephone,