What's the sharpest thing on earth?

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Tags

  1. #atmosphere
  2. #narrow
  3. #electric
  4. #exposing
  5. #microscope
  6. #object
  7. #tungsten
  8. #needle
  9. #placing
  10. #tapers
  11. #thickness
  12. #sharpest
  13. #device
  14. #manufactured
  15. #called
  16. #nitrogen
  17. #single
  18. #field
  19. #strong