HISTORY OF INVENTIONS

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Across
  1. 4. fast cooking device using electromagnetic waves
  2. 7. safety device for slowing descent from high altitudes
  3. 10. used to generate energy by splitting atoms
  4. 12. early mechanical writing device for documents
  5. 14. allowed doctors to see inside the human body
  6. 15. powered factories and trains during the Industrial Revolution
  7. 17. creates three-dimensional objects layer by layer
  8. 20. revolutionized clothing production in the 19th century
  9. 24. revolutionized calculations and later everyday tasks
  10. 25. stores electrical energy for portable devices
  11. 27. first successful flight by the Wright brothers in 1903
  12. 29. medicines like penicillin that fight bacterial infections
  13. 31. transformed global communication and data sharing
  14. 32. technology that detects objects by using radio waves
  15. 35. personal device that uses satellite signals for navigation
  16. 39. provides cool air to indoor environments
  17. 42. satellite navigation that replaced maps for global travel
  18. 44. first device to record and play sound, invented by Edison
  19. 46. captures moments in time, with early models like the Kodak
  20. 47. underwater vessel used for exploration and warfare
  21. 48. invented by Alexander Graham Bell in 1876
Down
  1. 1. used by Galileo to study planets and stars
  2. 2. helped in constructing skyscrapers in urban areas
  3. 3. measures atmospheric pressure for weather forecasting
  4. 5. vehicle that travels over land and water using air cushions
  5. 6. light amplification used in technology and medicine
  6. 8. became a household entertainment device in the 20th century
  7. 9. discovered by Alexander Fleming in 1928
  8. 11. automated machine for withdrawing cash from banks
  9. 13. hook-and-loop fastener widely used in clothing
  10. 16. mass-produced by Henry Ford in the early 1900s
  11. 18. measures temperature, crucial for medicine and weather
  12. 19. essential for the functioning of printing presses
  13. 20. converts sunlight into electricity for clean energy
  14. 21. Eli Whitney’s machine that boosted cotton production
  15. 22. propels airplanes faster than ever before
  16. 23. instrument that opened up the world of microorganisms
  17. 26. devices orbiting Earth for communication and data
  18. 28. illuminated homes and streets, credited to Edison
  19. 30. combined phone, camera, and computer in one device
  20. 33. train engine powered by steam in the 19th century
  21. 34. medical tool to listen to heart and lung sounds
  22. 36. device that regulates heartbeats for cardiac patients
  23. 37. glasses that help see near and far, invented by Franklin
  24. 38. simplified the labor of cleaning clothes at home
  25. 40. preserved food and medicines by keeping them cool
  26. 41. navigation tool that changed sea exploration
  27. 43. two-wheeled personal transportation device, still widely used
  28. 45. first used for ship-to-shore communication