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  1. Medieval urine wheel
  2. Development of Arabic numerals
  3. Orbit of the Earth
  4. Four Horsemen of the Apocalypse
  5. Galileo using a telescope
  6. Sir Isaac Newton, British physicist
  7. Legend of Archimedes and the lever
  8. Brain anatomy
  9. Distillation, 16th century woodcut
  10. Apollonius of Perga, Greek mathematician
  11. Iron pyrites
  12. Early electric lamps
  13. Muscles of lower leg
  14. Phonetic Egyptian hieroglyphs
  15. Steam-powered coach, 1829
  16. Brain anatomy, 16th century diagram
  17. Shoveler duck, historical artwork
  18. The Earth's seasons
  19. Golden eagle, historical artwork
  20. Medical zodiac, 15th century diagram
  21. Early petrol locomotives
  22. Splitting of wood log
  23. Little stint, historical artwork
  24. Carboniferous landscape
  25. Detail of 16th century map of Liguria
  26. Organic tomatoes
  27. Hughes' printing telegraph
  28. Boring a hole
  29. Detail of 16th century map of Liguria
  30. Foot bones and ligaments
  31. Durer's world map, 1515
  32. Early video phone system, 1930
  33. 14th century theological cosmography
  34. Galen lecturing on anatomy in Rome
  35. Atauriques in the Nasrid palace, Granada, Andalucia, Spain
  36. High-pressure steam engine, 19th century
  37. Grey phalarope, historical artwork
  38. Heron/Hero of Alexandria, mathematician
  39. Sets of fingerprints
  40. Early electric train
  41. Faraday's electrolysis experiment, 1833
  42. Red kite, historical artwork
  43. Zenobe Gramme
  44. Triger's caisson, 19th century
  45. Spinal bones and ligaments
  46. Telegraph Key (Morse Code) Type J-37
  47. Rainhill Trials steam trains, 1829
  48. Mappa Mundi by La Cosa in 1500