Rhythm


 * Rhythm in visual arts is an attribute of any object that is marked by a systematic recurrence of elements having recognizable relationships between them. In Architecture, much of the effects of a building will depend on the harmony, the simplicity, and the power of these rhythmical relationships **


 * Types of rhythm: **


 * The repetition of shapes: windows, doors, columns, arches **
 * The repetition of dimensions: the dimensions between supports or those of bay spacing **
 * The repetition of differences: the ascending and descending progressions are built up from small to large and to small again **
 * The rhythm of lines: It can be merely systematic variations of linear lengths or curvatures **


 * Open rhythm is a mere repetition of similar units equally spaced and without a defined beginning or a defined end. **


 * Just as we can have rhythms of linear length, so we can have repetition of line motions in curves. Thus, the progression from a circle to an ellipse is based on a related change in the radius of the curvature. Spirals similarly have an interesting progression in the radius of the curvatures from small to large. **

 
 * Rhythmical relationships arise simply and naturally from constructive and functional necessities: controlled and orchestrated by the creative imagination, they become one of the chief elements in architectural beauty. Modern architecture, like modern music, varies in its rhythmical ideals from the most clear-cut and regular rhythms to those in which there is a search from such free and so-called natural rhythms that the rhythmical basis is almost entirely lost and the result appears, to many people, amorphous and without meaning. **

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