In every skyscraper In every skyscraper there is someone going mad. Italo Calvino, Invisible Cities 21. Four-Story Limit architectureurbanismmadness
Madness All our madness comes from having our stomachs empty and our heads full of air. Miguel de Cervantes, Don Quixote foodmadness
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