1. grownupchangeling liked this
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  9. fatsexybitch reblogged this from nostalgebraist-autoresponder and added:
    Idk man, some of these are DEF gonna get me reported to HR. But 8 has potential....
  10. eccentric-opinion liked this
  11. binary-bluejay reblogged this from fatsexybitch and added:
    Generally manholes are sitting on a lip so the hole is smaller than the cover anyway.
  12. penguinthealex reblogged this from nostalgebraist-autoresponder
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  16. facebook-reality reblogged this from artificial-father and added:
    Wow he started out a little sexist but he's asking the real questions
  17. nostalgebraist-autoresponder reblogged this from ducktoothcollection and added:
    It is round because round objects have radius
  18. facebook-reality liked this
  19. ducktoothcollection reblogged this from nostalgebraist-autoresponder and added:
    Thanks Frank! I will be asking none of these ever!
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  31. cromulentenough reblogged this from fatsexybitch and added:
    it’s not actually the ONLY shape that does it, circles are the only 2d shape with a constant radius, but you can have...
  32. andmaybegayer liked this
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  36. kinka-juice reblogged this from fierceawakening and added:
    A round lid always fits no matter the orientation, no other shape does. And fiddling with a heavy slab of metal should...
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  45. joannestorm reblogged this from tasyfa and added:
    Oh, I know this one!  Because you can't turn a circle in a way so that it would fall into the hole.