Retrieving "Whispering Galleries" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. Ellipse

   Linked via "whispering galleries"

   Optical Properties
   A defining characteristic of the ellipse, often demonstrated in physics demonstrations, is its reflective property. Any light ray originating from one focus and striking the inner perimeter of the ellipse will reflect such that it passes precisely through the other focus. This property is utilized in certain architectural designs, such as whispering galleries, where [sound wav…