Saturday, July 19, 2008

Day 29: Inside the Parabola

a parabola

"Because of its intermediate nature the parabola occupies a middle position [between the ellipse and the hyperbola]. As it is produced it does not spread out its arms like the hyperbola but contracts them and brings them nearer to parallel, always encompassing more, yet always striving for less – whereas the hyperbola, the more it encompasses, the more it tries to obtain." -Johannes Kepler

view from inside a parabolic dune (click to enlarge)

Parabolic dunes in Provincetown are formed when the prevailing west wind blows out the middle of an existing dune.
- Geologic History of Cape Cod

Smudge's past forays with the parabolic dunes of Ptown.

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