HOUSE n.
eastern horizon, called the ascendant, first house, or house of life, downward, or in the direction of the earth's revolution, the stars and planets passing through them in the reverse order every twenty- four hours.
HYDROSTATIC; HYDROSTATICAL a.
alance any weight, however great; or the law of the equality of pressure of fluids in all directions. -- Hydrostatic press, a machine in which great force, with slow motion, is communicated to a large plunger by means of water forced into the cylinder in which it moves, by a forcing pump of small diameter, to which th…
IMAGE n.
s may be received on a screen, a photographic plate, or the retina of the eye, and viewed directly by the eye, or with an eyeglass, as in the telescope and microscope; the likeness of an object formed by reflection; as, to see one's image in a mirror. Electrical image. See under Electrical. -- Image breaker, one who d…
IMMEDIATE a.
ervention of another object as a cause, means, or agency; acting, perceived, or produced, directly; as, an immediate cause. The immediate knowledge of the past is therefore impossible. Sir. W. Hamilton. Immediate amputation (Surg.), an amputation performed within the first few hours after an injury, and before the the…
IMPEDANCE n.
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 = frequency and L = self-inductance; for a circu…