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  1. San Luis, Argentina - USGS Earth as Art
  2. Bears
  3. Laboratory flask and circuit board
  4. Seahorse skeleton
  5. Brain with skull in situ - lateral view. nervous system
  6. Hazardous chemicals
  7. Row of spectrophotometer cells
  8. Breast cancer cells, SEM
  9. Robot arm picks tray of DNA-containing bacteria
  10. Bilharzia infection, ureter tissue
  11. First V-2 rocket launch, artwork
  12. Muscles of lower leg
  13. Atom, artwork
  14. Tibetan cosmology, 18th century artwork
  15. Organic synthesis
  16. Quark structure of silicon atom nucleus
  17. Heart
  18. Early video phone system, 1930
  19. Early telephone, historical artwork
  20. HIV virus particles, artwork
  21. Detached blood clot, artwork
  22. Artwork of structures within a human nerve
  23. Structure of a human heart, artwork
  24. Estimated Number Of Known Living Species
  25. Antibiotic destroying a bacterium
  26. Colorized scanning electron micrograph of filamentous Ebola virus particles
  27. Cell division
  28. Anterior neck and facial muscles of the human head (with labels)
  29. Meandering Mississippi - USGS Earth as Art
  30. DNA sequences
  31. The sun sets behind a row of spinning windmills or wind turbines
  32. DNA autoradiogram, artwork
  33. Hughes' printing telegraph
  34. Osteoporosis
  35. Cobalt chloride crystals magnified 40x
  36. 5s electron orbital
  37. Kidney glomeruli, SEM
  38. Printing Press
  39. Noctis Labyrinthus, Mars
  40. Cross section biomedical illustration of pulp and root abscess in molar
  41. V-2 rocket prior to first US launch
  42. Woman holding ultrasonograph photo of baby
  43. Paramecium protozoa, light micrograph
  44. Microscopic view of Penicillium expansum
  45. Glacial sand deposit
  46. Lie detector test
  47. Caffeine crystals, SEM
  48. Upper body bones, computer artwork.