The principle that the resultant of the external forces and the kinetic reaction acting on a body equals zero.

Related Terms

PODBIELNIAK EXTRACTOR

A solventextraction device in which centrifugal action enhances liquid-liquid contact and increases resultant separation efficiency.

NEUROMORPHIC ENGINEERING

Use of the functional principles of biological nervous systems to inspire the design and fabrication of artificial nervous systems, such as vision chips fluid-content properties down a wellhole by neutron bombardment and detection of resultant radiation (neutrons or gamma rays). Also known as neutron logging.

MODULUS OF ELASTICITY IN SHEAR

A measure of a material's resistance to shearing stress, equal to the shearing stress divided by the resultant angle of deformation expressed in radians. Also known as coefficient of rigidity; modulus of rigidity; rigidity modulus; shear modulus.

LINE OF THRUST

Locus of the points through which the resultant forces pass in an arch or retaining wall.

IRREVERSIBLE ENERGY LOSS

Energy transformation process in which the resultant condition lacks the driving potential needed to reverse the process; the measure of this loss is expressed by the entropy increase of the system.

LOCAL VERTICAL

The direction of the acceleration of gravity as opposed to the normal to the reference ellipsoid. It is in the direction of the resultant of the gravitational and centrifugal accelerations of the earth at the location of the observer. Also called PLUMB-BOB VERTICAL.

COURSE MADE GOOD

A misnomer indicating the resultant direction from a point of departure to a point of arrival at any given time.

RESULTANT

The sum of two or more vectors.

MERCURY BALLISTIC

A system of reservoirs and connecting tubes contain- ing mercury used with a type of nonpendulous gyrocompass. The action of gravity on this system provides the torques and resultant precessions required to convert the gyroscope into a compass.

GENERAL PRECESSION

The resultant motion of the components causing precession of the equinoxes westward along the ecliptic at the rate of about 50.3' per year, completing the cycle in about 25,800 years. The effect of the sun and moon, called lunisolar precession, is to produce a westward motion of the equinoxes along the ecliptic. The effect of other planets, called planetary precession, tends to produce a much smaller motion eastward along the ecliptic. The component t of general precession along the celestial equator, called precession in right ascension, is about 46.1' per year; and the component along a celestial meridian, called precession in declination, is about 20.0' per year.

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