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  1. Thomas Edison, US inventor
  2. Johnniac computer
  3. Dial calipers
  4. Microscopic view of multiple nerve cells, known as neurons
  5. Richat Structure - USGS Earth as Art
  6. Rice Terraces, Longsheng Ping'an, Guangxi
  7. Wisconsin - USGS State Mosaic
  8. Functional areas of the brain, artwork
  9. Welders Goggles I
  10. Male reproductive system, artwork
  11. Sir Isaac Newton
  12. 2s electron orbital
  13. Brain anatomy, 16th century diagram
  14. Eye anatomy, artwork
  15. Heather - Botanical Illustration
  16. Normal spine, X-ray
  17. Human head anatomy, artwork
  18. Stages in human evolution
  19. Sagenite On Mexican Agate
  20. If I Were A Cloud
  21. Joint pain, conceptual artwork
  22. USA, Western New York, Buffalo, Lake Erie And Grain Elevator
  23. E=mc2 in blue
  24. Spinal cord anatomy, 1844 artwork
  25. Comparison of bones of forearm and lower leg - anterior view. skeletal system
  26. The bones of the neck
  27. Utah - USGS State Mosaic
  28. Crystal
  29. Microscopic view of rotavirus
  30. Brain antomy, 19th century artwork
  31. Mushroom Chart III
  32. Wingate Pass Agate, Ca
  33. Virus particles, conceptual artwork
  34. Visualisation of quark structure of silicon
  35. Alan Turing, British mathematician
  36. Oil well pump jacks at Bakken Oil Field near Estevan, Saskatchewan, Canada
  37. Sierra de Velasco - USGS Earth as Art
  38. DNA helix
  39. Pneumonia Strikes like a Man Eating Shark - WPA Poster
  40. Woman interacting with multiple touch screens
  41. Alternating Motor - Blue
  42. Galileo using a telescope
  43. Male muscles, artwork
  44. Blue liquid being dropped into a beaker of clear water
  45. CDF particle detector, Fermilab
  46. 3d electron orbitals
  47. Embryo development
  48. The Optimist - USGS Earth as Art