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  1. High-pressure steam engine, 19th century
  2. Detail of 16th century map of Liguria
  3. Galen lecturing on anatomy in Rome
  4. Four Horsemen of the Apocalypse
  5. Phrenology chart
  6. Acoustic echo
  7. Early electric lamps
  8. Torso bones
  9. Shoveler duck, historical artwork
  10. Iron pyrites
  11. 1920s television system, diagram
  12. Orbit of the Earth
  13. Muscles of lower leg
  14. Medieval urine wheel
  15. Distillation, 16th century woodcut
  16. Apollonius of Perga, Greek mathematician
  17. Standard electrical circuit symbols
  18. Phonetic Egyptian hieroglyphs
  19. Sir Isaac Newton, British physicist
  20. Arabic science timeline
  21. Early radiography experiment
  22. 16th century map of Sardinia cartouche
  23. Brain anatomy
  24. Spinal bones and ligaments
  25. Perpetual motion machine, 19th century
  26. The Earth's seasons
  27. Dioscorides, Ancient Greek physician
  28. Cuneiform script
  29. Steam-powered coach, 1829
  30. Snow crystals
  31. Legend of Archimedes and the lever
  32. Hughes' printing telegraph
  33. 14th century theological cosmography
  34. Ear anatomy
  35. Boring a hole
  36. Splitting of wood log
  37. Early video phone system, 1930
  38. Grey phalarope, historical artwork
  39. Carboniferous landscape
  40. Medical zodiac, 15th century diagram
  41. Foot bones and ligaments
  42. Atauriques in the Nasrid palace, Granada, Andalucia, Spain
  43. Durer's world map, 1515
  44. Detail of 16th century map of Liguria
  45. Early electric train
  46. Mendelian inheritance
  47. Sets of fingerprints
  48. Heron/Hero of Alexandria, mathematician