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  1. Functional areas of the brain, artwork
  2. Healthy brain, MRI scans
  3. Fahrenheit Wind Chill Chart
  4. Utah - USGS State Mosaic
  5. Agate Geode I
  6. The bones of the head, neck and face
  7. Electronics Illustrated, March
  8. Brain antomy, 19th century artwork
  9. Arthritis of the hip, X-ray
  10. Molecule Ethanol
  11. Sun and its planets
  12. Base of human skull, inferior view, with labels
  13. Tyrannosaurus
  14. Atomic structure
  15. Richat Structure - USGS Earth as Art
  16. Close Ups Of Fortification On Crazy Lace Agate
  17. Conceptual image of DNA
  18. Human heart, artwork
  19. Distillation, 16th century woodcut
  20. Telephone switchboard operator, 1914
  21. Energy
  22. Mineralogie I
  23. Technicians Wanted to Engineer our Future on Mars
  24. Legend of Archimedes and the lever
  25. Normal knee, X-ray
  26. Woolly mammoths
  27. Rosalind Franklin, British chemist
  28. Laboratory glassware
  29. Earth Agate A
  30. Human skeleton
  31. Bronchodilator drug crystals, SEM
  32. Insulin Crystals, Light Micrograph
  33. Wind turbine in rural location with old barn in Cavalier County, USA
  34. Artwork of a Tyrannosaurus rex dinosaur
  35. Edwin Hubble, US astronomer
  36. Evolution of man
  37. DNA nucleotides, artwork
  38. T-Rex Fighting A Group Of Triceratops
  39. Granville Woods, US inventor
  40. The Apothecary or, The Chemist
  41. Cut agates
  42. Michigan - USGS State Mosaic
  43. Conybeare Plesiosaurus reconstruction
  44. Living Relatives of Dinoaurs
  45. Portrait of Michael Faraday (1791-1867) 1841-42
  46. Paracelsus and the Basel tribunal
  47. Burst of energy forms into powerful beam of light
  48. Medieval urine wheel