The close Think of it as an invisible geometric shape perceptible only to lawyers—a conceptual pane of glass that might not have kept the rain out but could, for legal purposes, be used to define the original limits of the car’s interior. This is the close, and defining it is ultimately just a form of connecting the dots: drawing an imaginary line from the corner of an open window to the edge of a nearby wall to the front gate of a home garden, and so on. Breaking the close thus constitutes entry into a “protected interior” or “specified enclosure". Geoff Manaugh, A Burglar's Guide to the City law
Local Code: The Constitution of a City at 42º N Latitude A Book by Michael Sorkin www.goodreads.com The source code for SimCityLocal Code: 3,659 Proposals About Data, Design & The Nature of Cities regulationslawcities
Caustic (optics) Caustics made by the surface of water. In optics, a caustic is the envelope of light rays reflected or refracted by a curved surface or object, or the projection of that envelope of rays on another surface. The caustic is a curve or surface to which each of the light rays is tangent, defining a boundary of an envelope of rays as a curve of concentrated light. Wikipedia en.wikipedia.org Architectural CausticsCaustic Engineering caustics