Esser's Heart Surface

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This Demonstration shows Esser's heart surface.

Contributed by: Izidor Hafner (November 2013)
Open content licensed under CC BY-NC-SA



In 1985, William Esser III was awarded a US patent for the dissection of an ellipsoid to a heart-shaped object. Ernst Lurker, a sculptor, discovered a very similar dissection around the same time.


[1] G. N. Frederickson, Hinged Dissections: Swinging & Twisting, New York: Cambridge University Press, 2002 pp. 6–7.

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