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magnet, or electro-magnet, in order to complete the circuit, or to receive and apply the magnetic force. In the ordinary horseshoe magnet, it serves to prevent the dissipation of the magnetic force.

ittle or no tendency to take a fixed or definite position or direction: thus, a suspended magnetic needle, when rendered astatic, loses its polarity, or tendency to point in a given direction. Astatic pair (Magnetism), a pair of magnetic needles so mounted as to be nearly or quite astatic, as in some galvanometers.…

ny appendage or organ; as, the axial bones. Axial line (Magnetism), the line taken by the magnetic force in passing from one pole of a horseshoe magnet to the other. Faraday.

In relation to, or in a line with, an axis; in the axial (magnetic) line.

A rock of igneous origin, consisting of augite and triclinic feldspar, with grains of magnetic or titanic iron, and also bottle- green particles of olivine frequently disseminated.

sed also of inanimate objects; as, the behavior of a ship in a storm; the behavior of the magnetic needle. A gentleman that is very singular in his behavior. Steele. To be upon one's good behavior, To be put upon one's good behavior, to be in a state of trial, in which something important depends on propriety of conduc…

Penetrating rays readily deflected by a magnetic or electric field, emitted by radioactive substances, as radium. They consist of negatively charged particles or electrons, apparently the same in kind as those of the cathode rays, but having much higher velocities (about 35,000 to 180,000 miles per second).…

spool-shaped coil or insulated wire, usually containing a core of soft iron which becomes magnetic when the wire is traversed by an electrical current. Bobbin and fly frame, a roving machine. -- Bobbin lace, lace made on a pillow with bobbins; pillow lace.

A certain process for producing upon articles of iron or steel an adherent coating of the magnetic oxide of iron (which is not liable to corrosion by air, moisture, or ordinary acids). This is accomplished by producing, by oxidation at about 1600º F. in a closed space, a coating containing more or less of the ferric ox…

tough, lustrous, reddish white metal of the iron group, not easily fusible, and somewhat magnetic. Atomic weight 59.1. Symbol Co.

er. -- Compass window (Arch.), a circular bay window or oriel window. It has two or more magnetic needles permanently attached to a card, which moves freely upon a pivot, and is read with reference to a mark on the box representing the ship's head. The card is divided into thirty-two points, called also rhumbs, and th…

The law that the force exerted between two electric or magnetic charges is directly proportional to the product of the charges and inversely to the square of the distance between them.

-- Declination compass (Physics), a compass arranged for finding the declination of the magnetic needle. -- Declination of the compass or needle, the horizontal angle which the magnetic needle makes with the true north-and-south line.

An instrument for measuring the declination of the magnetic needle.

To deprive of magnetic properties. See Magnetize. If the bar be rapidly magnetized and demagnetized. A. Cyc.

- Deviation of the compass, the angle which the needle of a ship's compass makes with the magnetic meridian by reason of the magnetism of the iron parts of the ship. -- Deviation of the line of the vertical, the difference between the actual direction of a plumb line and the direction it would have if the earth were a…

ystalline, igneous rock, consisting essentially of a triclinic feldspar and pyroxene with magnetic iron; -- often limited to rocks pretertiary in age. It includes part of what was early called greenstone.

A body having diamagnetic polarity.

The science which treats of diamagnetic phenomena, and of the properties of diamagnetic bodies.

e and a tangent drawn from the eye to the surface of the ocean. -- Dip of the needle, or Magnetic dip, the angle formed, in a vertical plane, by a freely suspended magnetic needle, or the line of magnetic force, with a horizontal line; -- called also inclination. -- Dip of a stratum (Geol.), its greatest angle of inc…