The Book of Tea A Book by Okakura Kakuzō In the teacupThe greatness of little thingsThe reality of the buildingWhat a tempest in a teacup!To bring out its noblest qualities+19 More tea
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