To do some more pushups on the internet There may be a lot of things that have to be studied, but there is also what I call "occupational therapy for the opposition" that says, send them off to do some more pushups on the internet. You need to be mindful that it is possible to use information, and the need for information, as a delay for the call for action. Ursula M. Franklin, Every Tool Shapes the Task informationethicswwwjustice
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