IMPEDANCE n.
The apparent resistance in an electric circuit to the flow of an alternating current, analogous to the actual electrical resistance to a direct current, being the ratio of electromotive force to the current. It is equal to R2 + X2, where R = ohmic resistance, X = reactance. For an inductive circuit, X = 2pfL, where f =…
INTERMITTENT a.
Coming and going at intervals; alternating; recurrent; periodic; as, an intermittent fever. Boyle. Intermittent fever (Med.), a disease with fever which recurs at certain intervals; -- applied particularly to fever and ague. See Fever. -- Intermittent gearing (Mach.), gearing which receives, or produces, intermittent…
LIBRATION n. 2 definitions
th, in consequence of which narrow portions at opposite limbs become visible or invisible alternately. It receives different names according to the manner in which it takes place; as: (a) Libration in longitude, that which, depending on the place of the moon in its elliptic orbit, causes small portions near the eastern…
MANGLE n.
in the mangle. The pinion is held to the rack by a groove in such a manner that it passes alternately from one side of the rack to the other, and thus gives motion to it in opposite directions, according to the side in which its teeth are engaged. -- Mangle wheel, a wheel in which the teeth, or pins, on its face, are…