An elliptical dome, or an oval dome, is a dome whose bottom cross-section takes the form of an ellipse.[1] Technically, an ellipsoidal dome has a circular cross-section, so is not quite the same.
While the cupola can take different geometries, when the ceiling's cross-section takes the form of an ellipse, and due to the reflecting properties of an ellipse, any two persons standing at a focus of the floor's ellipse can have one whisper, and the other hears; this is a whispering gallery.
The largest elliptical dome in the world is at the Sanctuary of Vicoforte in Vicoforte, Italy.[2][3][4]
- ^ Arun, G (2006). "Behaviour of Masonry Vaults and Domes: Geometrical Considerations" (PDF). Structural Analysis of Historical Constructions, New Delhi. Archived from the original (PDF) on 2020-10-23. Retrieved 2020-12-04.
- ^ "Visiting the largest elliptical dome in the world, in Vicoforte". ItalyRiveirAlps. 25 April 2016. Retrieved 2020-12-04.
- ^ Chiorino, Mario Alberto (2008). "Modeling Strategies for the World's Largest Elliptical Dome at Vicoforte". International Journal of Architectural Heritage. 2 (3): 274–303. doi:10.1080/15583050802063618. S2CID 109078429.
- ^ Aoki, Takayoshi. "Structural characteristics of the elliptical masonrydome of the sanctuary of Vicoforte".
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