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  1. Fire plumes, computer simulation
  2. Molecular properties of different liquids
  3. Tourmaline
  4. Early astronomical spectroscopy
  5. STS-125 Mission
  6. Artist's impression of Tyrannosaurus rex
  7. Anaerobiospirillum thomasii flagella, TEM
  8. Orlan spacesuit gloves
  9. Metal compound solutions
  10. Antibiotic cell membrane effect, artwork
  11. Practical Wireless, November 1958
  12. Museum Wormianum, historical engraving
  13. Brandberg Massif - USGS Earth as Art
  14. Liesegang patterns
  15. Pipes at Nesjavellir Geothermal Power Plant, Iceland
  16. Neolithic hunters
  17. 19th-century mining machine
  18. STS-127 Mission
  19. Robot picking bacteria containing human DNA
  20. Robot arm picks tray of DNA-containing bacteria
  21. Interior of human blood vessel showing a thrombus
  22. Namib Desert - USGS Earth as Art
  23. Skull anatomy
  24. Mouse tongue, SEM
  25. Antique Whale Study II
  26. Grass stem, SEM
  27. Stem cell research
  28. Marburg virus, TEM
  29. Nerve cell, computer artwork
  30. Embryonic development
  31. Artwork of heartburn (acid indigestion) in stomach
  32. Craniofacial surgery approaches
  33. Microscopic view of white blood cells inside blood vessel
  34. Hand anatomy, artwork
  35. Lunar Lander, Defy Gravity
  36. Artwork of microstructure of human bone
  37. Can evacuated by vacuum pump
  38. Brontotherium, a family of extinct mammals
  39. Anyuyskiy Volcano - USGS Earth as Art
  40. Group 2 metals
  41. Retina of a normal eye
  42. The Dhofar Difference - USGS Earth as Art
  43. Caduceus, artwork
  44. Rocket, Be Greater Than Average
  45. Retina with neovascularization
  46. Doctor's stethoscope
  47. Healthy teeth, artwork
  48. Great Sandy Scars - USGS Earth as Art