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  1. Water wheel
  2. Triger's caisson, 19th century
  3. The Earth's seasons
  4. Tawny owl, historical artwork
  5. Steam-powered coach, 1829
  6. Southern celestial map
  7. Solar system map from 1853
  8. Shoveler duck, historical artwork
  9. Shelduck, historical artwork
  10. Sandpiper, historical artwork
  11. Redshank, historical artwork
  12. Red kite, historical artwork
  13. Rainhill Trials steam trains, 1829
  14. Rainbow optics, historical artwork
  15. Railway carriages
  16. Perpetual motion machine, 19th century
  17. Northern celestial map
  18. Newspaper printing press
  19. Nettle groundbug
  20. Morse's telegraph receiver
  21. Mathian steam boiler
  22. Mars map from 1881
  23. Losh and Stephenson's carriage
  24. Little stint, historical artwork
  25. Jonathan Hulls' steamboat, 18th century
  26. Ivory-billed woodpeckers, artwork
  27. Illustration of a 19th century steam locomotive
  28. Hummingbirds, historical artwork
  29. Hughes' printing telegraph
  30. Hornblower's engine
  31. Hop capsid bug
  32. Historical celestial system
  33. High-pressure steam engine, 19th century
  34. Heart and lungs, historical illustration
  35. Heart And Lungs, Historical Illustration
  36. Ground bug
  37. Grey phalarope, historical artwork
  38. Golden eagle, historical artwork
  39. Gene therapy: model of DNA inside a drug
  40. Garnerin's parachute design, 1797
  41. Galloway steam boiler
  42. Flame emission spectra of alkali metals
  43. Fingerprint, computer artwork
  44. F/col STM image of DNA (isometric projection)
  45. Extinct dodo
  46. Engraving of the Bullock Rotary Press of 1865
  47. Earth's celestial circles, 1708 artwork
  48. Early video phone system, 1930