Using boiling water to produce mechanical motion goes back about 2,000 years, but early devices were not practical.

Furthermore, the force has to be generated along the same axis as the mechanical motion.

With a smooth mechanical motion, the seat of the chair broke in half.

Wave energy converters make use of the mechanical motion or fluid pressure.

An engine or motor is a machine designed to convert energy into useful mechanical motion.

Hollyman went through the mechanical motions of planning his attack.

Fortuna went through her mechanical motions and a green card came out.

But among all this mechanical motion no human form appeared.

Pneumatics is the use of pressurized air for mechanical motion.

This is because sound waves involve the mechanical motion of the atom.