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  1. Albert Einstein, physicist
  2. Eye exam chart
  3. Cervical smear slides
  4. Electronic and biologic systems, artwork
  5. Thyroid cancer cells
  6. Bee anatomy, artwork
  7. Practical Wireless, May 1957
  8. Hampton Institute, 1899
  9. Spinal bones and ligaments
  10. Zenobe Gramme
  11. Plant pore, SEM
  12. View Of Saturn From The Surface Of Mars, A Composite Image
  13. Extinct dodo
  14. Time-lapse image of a solar eclipse
  15. Molecule THC
  16. Differential analyser, 1954
  17. Printing Press
  18. Red blood cells, SEM
  19. Morphine crystals, SEM
  20. Computer enhanced image of a snow flake
  21. TEM of Proteus mirabilis bacterium
  22. Australopithecus afarensis, artwork
  23. Planets' internal structures
  24. The New Photography Or X Ray Photography From The Modern Cyclopedia Vol VI 1903
  25. View Of Venus And Moon From The Surface Of Mars, A Composite Image
  26. Venus
  27. Illustration of the human placenta
  28. Telegraph Key (Morse Code) Type J-37
  29. Woman's eye
  30. Tuberculosis bacteria
  31. Male urinary bladder and urethra. urinary system
  32. Albert Einstein
  33. Artwork showing calcaneal spur and foot pain
  34. Vintage Parchment Bausch And Lomb Microscope Patent Poster
  35. Rainhill Trials steam trains, 1829
  36. Human skull
  37. Petri dish bacterial cultures, picking a colony
  38. Torso bones
  39. Brain blood vessels
  40. Arteries of the posterior abdominal wall. cardiovascular system
  41. Skeleton Chart
  42. Femur - anterior view. skeletal system
  43. Nedoceratops dinosaur, artwork
  44. Cross-section of a human tooth
  45. The Earth's Annual Orbit
  46. STS-135 Mission
  47. Oscilloscope showing voltage/time trace
  48. Concentrating sunlight, 17th century