The “ΦTOP”: A Golden Ellipsoid
Kenneth Brecher

Proceedings of Bridges 2015: Mathematics, Music, Art, Architecture, Culture
Pages 371–374
Short Papers

Abstract

The golden ratio can be incorporated into an ellipse. Rotated around its major axis, the resulting 3-dimensional figure can be called a “golden ellipsoid”. This object can act as a new kind of spinning top I call the “ΦTOP”. The golden ellipsoid can be made into elegant sculptures as well. It also demonstrates an unusual visual illusion.

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