HISTORY OF INVENTIONS

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Across
  1. 2. Instrument that opened up the world of microorganisms
  2. 4. Provides cool air to indoor environments
  3. 6. Two-wheeled personal transportation device, still widely used
  4. 8. Propels airplanes faster than ever before
  5. 9. First device to record and play sound, invented by Edison
  6. 13. First successful flight by the Wright brothers in 1903
  7. 14. Automated machine for withdrawing cash from banks
  8. 15. Light amplification used in technology and medicine
  9. 16. Hook-and-loop fastener widely used in clothing
  10. 20. Underwater vessel used for exploration and warfare
  11. 22. Stores electrical energy for portable devices
  12. 24. Revolutionized calculations and later everyday tasks
  13. 28. Early mechanical writing device for documents
  14. 29. Safety device for slowing descent from high altitudes
  15. 30. Glasses that help see near and far, invented by Franklin
  16. 31. Personal device that uses satellite signals for navigation
  17. 32. Illuminated homes and streets, credited to Edison
  18. 33. Measures atmospheric pressure for weather forecasting
  19. 34. Navigation tool that changed sea exploration
  20. 35. Transformed global communication and data sharing
  21. 37. Medical tool to listen to heart and lung sounds
  22. 39. Discovered by Alexander Fleming in 1928
  23. 41. Used by Galileo to study planets and stars
  24. 44. Used to generate energy by splitting atoms
  25. 48. Helped in constructing skyscrapers in urban areas
  26. 49. Simplified the labor of cleaning clothes at home
  27. 50. Powered factories and trains during the Industrial Revolution
Down
  1. 1. Revolutionized clothing production in the 19th century
  2. 3. Revolutionized mass communication in the 15th century
  3. 5. Fast cooking device using electromagnetic waves
  4. 7. Became a household entertainment device in the 20th century
  5. 10. Preserved food and medicines by keeping them cool
  6. 11. Medicines like penicillin that fight bacterial infections
  7. 12. Device that regulates heartbeats for cardiac patients
  8. 17. Eli Whitney’s machine that boosted cotton production
  9. 18. Mass-produced by Henry Ford in the early 1900s
  10. 19. Combined phone, camera, and computer in one device
  11. 21. Technology that detects objects by using radio waves
  12. 23. Devices orbiting Earth for communication and data
  13. 25. Converts sunlight into electricity for clean energy
  14. 26. Train engine powered by steam in the 19th century
  15. 27. Measures temperature, crucial for medicine and weather
  16. 36. Satellite navigation that replaced maps for global travel
  17. 38. Invented by Alexander Graham Bell in 1876
  18. 40. Essential for the functioning of printing presses
  19. 42. Allowed doctors to see inside the human body
  20. 43. Creates three-dimensional objects layer by layer
  21. 45. Captures moments in time, with early models like the Kodak
  22. 46. First used for ship-to-shore communication
  23. 47. Vehicle that travels over land and water using air cushions