Me*chan"ics (?), n. [Cf.
F. mécanique.]
That science, or branch of
applied mathematics, which treats of the action of
forces on bodies.
&fist; That part of mechanics which
considers the action of forces in producing rest or equilibrium is called statics; that which relates to such action in producing motion is called dynamics. The term mechanics includes the action of forces on all bodies, whether solid, liquid, or gaseous. It is sometimes, however, and formerly was often, used distinctively of solid bodies only: The mechanics of liquid bodies is called also hydrostatics, or hydrodynamics, according as the laws of rest or of motion are considered. The mechanics of gaseous bodies is called also pneumatics. The mechanics of fluids in motion, with special reference to the methods of obtaining from them useful results, constitutes hydraulics.
Animal mechanics
(Physiol.), that portion of physiology which has for its object the investigation of the laws of equilibrium and motion in the
animal body. The most important mechanical principle is that of the lever, the bones forming the arms of the
levers, the contractile
muscles the power, the joints the fulcra or points of support, while the weight of the
body or of the individual limbs
constitutes the weight or resistance. --
Applied mechanics, the principles of abstract mechanics
applied to human art; also, the
practical application of the laws of matter and motion to the
construction of machines
and structures of all kinds.