What motion's this? the model of Nineveh?
Beau. & Fl.
Motion, in mechanics, may be simple or compound. Simple motions are:
(a) straight translation, which, if of indefinite duration, must be
reciprocating. (b) Simple rotation, which may be either continuous or
reciprocating, and when reciprocating is called oscillating. (c)
Helical, which, if of indefinite duration, must be reciprocating.
Compound motion consists of combinations of any of the simple motions.
Center of motion, Harmonic motion, etc. See under Center, Harmonic,
etc. -- Motion block (Steam Engine), a crosshead. -- Perpetual motion
(Mech.), an incessant motion conceived to be attainable by a machine
supplying its own motive forces independently of any action from
without.
Syn. -- See Movement.
Mo"tion, v. i. [imp. & p. p. Motioned (?); p. pr. & vb. n. Motioning.]
1. To make a significant movement or gesture, as with the hand; as, to
motion to one to take a seat.