The Sound Of Silence A Song by Paul Simon & Art Garfunkel www.simonandgarfunkel.com Hello darkness, my old friendThe flash of a neon lightAnd no one daredSilence like a cancer growsThe neon god they made Silence
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