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  1. DNA
  2. The analysis of sound frequencies by the basilar membrane.
  3. Coloured X-ray of a 17-jewel wrist-watch
  4. Conceptual image of human backbone
  5. A Pair Of Carnotaurus Dinosaurs Chasing A Group Of Gasparinisaura
  6. Scanning electron micrograph of HIV particles infecting a human T cell
  7. DNA nucleotides, artwork
  8. Common Dolphins
  9. Universal indicator scale
  10. E=mc2 in red
  11. The human body with superimposed colored plates by Julien Bougle
  12. Electromagnetic spectrum
  13. Photomicroscopic close up of a snowflake crystal
  14. Desert to Forest - USGS Earth as Art
  15. Bacteria infecting a macrophage, SEM
  16. Mixing Potions
  17. First Atom Bomb Test Site
  18. Healthy brain, MRI scans
  19. Conceptual image of DNA
  20. Leukemia cells, TEM
  21. Mineralogie I
  22. Lavoisier equipment, 1787
  23. Thomas Edison, US inventor
  24. 3D rendering of a Velociraptor dinosaur skeleton, side view
  25. Homeric cosmogony
  26. Fahrenheit Wind Chill Chart
  27. HaCaT culture cells, light micrograph
  28. The nerve supply of the trunk
  29. Technicians Wanted to Engineer our Future on Mars
  30. Insulin Crystals, Light Micrograph
  31. Molecule Peppermint
  32. Tyrannosaurus rex
  33. Crystal
  34. Keyboard Keys
  35. Electronics Illustrated, March
  36. Bismuth crystal
  37. Sun and its planets
  38. Richat Structure - USGS Earth as Art
  39. Brain antomy, 19th century artwork
  40. Functional areas of the brain, artwork
  41. Muscles used in cycling, 19th century
  42. Healthy brain, MRI scans
  43. The bones of the head, neck and face
  44. Cardiac muscle, SEM
  45. Cyanobacteria, SEM
  46. Molecule Chili
  47. Distillation, 16th century woodcut
  48. Arthritis of the hip, X-ray