Frustum - Examples

Examples

  • A notable example of a pyramidal frustum appears on the reverse of the Great Seal of the United States on the back of the United States one-dollar bill, the "unfinished pyramid" being surmounted by the Eye of Providence.
  • Certain ancient Native American mounds also form the frustum of a pyramid.
  • Chinese pyramids
  • The John Hancock Center in Chicago, Illinois is a frustum whose bases are rectangles.
  • The Washington Monument is a narrow pyramidal frustum (with square bases) with a pyramid attached to the top base.
  • The viewing frustum in 3D computer graphics is the usable field of view of a virtual photographic or video camera modeled as a pyramidal frustum.
  • The poem Love and tensor algebra, in the English translation of Stanislaw Lem's short-story collection The Cyberiad, claims that every frustum longs to be a cone.
  • A bucket is an everyday example of a conical frustum. The bottom internal diameter is usually smaller than the upper internal diameter.
  • The stereotypical lampshade is a frustum.

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