dynamical (dinamikal)

Same as dynamic. The dynamical theory [of the tides]. Encyc. Brit ., XXIII. 355. Dynamical coefficient of viscosity. See coefficient . dynamically (di-nam'i-kal-i), adv . In a dynamie manner; as regards dynamics. Dynamically, the only difference between carbonate of ammonia and protoplasm which can be called fundamental, is the greater molecular complexity and consequent instability of the latter. J. Fiske , Cosmic Philos., I. 433. dynamics (di-nam'iks), n. [Pl. of dynamic : see -ics. Cf. LL. dynamice, dynamics, δυνα μική (sc. τέχνη , art), fem. of δυναμικός , dynamic.] 1. The mathematical theory of force; also (until recently the common acceptation), the theory of forces in motion; the science of deducing from given circumstances (ma es, positions, velocities, forces, and constraints) the motions of a system of particles. The science of motion is divided into two parts: the accurate description of motion, and the investigation of the circumstances under which particular motions take place. That part of the science which tells us about the cir cum stances under which particular motions take place is called dynamics.. Dynamics are again divided into two branches: the study of those circumstances under which it is po ible for a body to remain at rest is called statics, and the study of circumstances of actual motion is called kinetics. W. K. Clifford. [What is here called kinetics has until recently been called dynamics.] The hope of science at the present day is to expre all phenomena in symbols of Dynamics . G. H. Lewes, Probs. of Life and Mind, II. 283. 2. The moving moral or physical forces of any kind, or the laws which relate to them. The empirical laws of society are of two kinds; some are uniformities of coexistence, some of succe ion. According as the science is occupied in ascertaining and verifying the former sort of uniformities or the latter, M. Comte gives it the title of Social Statics or of Social Dynamics. J. S. Mill , Logic, VI. x. § 5. These are then appropriately followed by the dynamics of the subject, or the institution in action in many grave controversies and many acute crises of history.