spiral

     

In mathematics, a spiral is a curve which emanates from a central point, getting progressively farther away as it revolves aroun the point.

Trivia about spiral

  • Shape of the organ of Corti in your ear & of some staircases
  • The whelk, a carnivorous marine gastropod, has a shell of this shape
  • Of elliptical, spiral, or irregular, shape of the Milky Way Galaxy
  • The Milky Way is classified as this type of galaxy, due to its coiled arms, not a staircase
  • With several arms coiling around a central bulge, the Milky Way galaxy is classified by Hubble as this type of galaxy
  • (Sofia of the Clue Crew reports from the Field Museum in Chicago) Snail shells are in a pattern usually called this; they add new coils as the snail ages
  • Put this in your "notebook": Andromeda (M 31), like the Milky Way, is a galaxy of this shape
  • Also a style of staircase, it's the type of tunnel built in B.C.'s Yoho National Park to solve the problem of a steep grade

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