A naturally occurring mineral (Fe3O4) that has magnetic properties such as the ability to attract other magnetic materials and is affected by the earth's magnetic field.



Related Terms

SIGNATURE

The graphic record of the magnetic or acoustic properties of a vessel.

FERROMAGNETICS

The science that deals with the storage of binary information and the logical control of pulse sequences through the utilization of the magnetic polarization properties of materials.

APPROXIMATE COEFFICIENTS

The six coefficients used in the analysis of the magnetic properties of a vessel in the course of magnetic compass adjustment. The values of these coefficients are determined from deviations of an unadjusted compass.

HEELING ERROR

The change in the deviation of a magnetic compass when a craft heels, due to the change i

ACLINIC

Without magnetic dip

NORTH GEOMAGNETIC POLE

The geomagnetic pole in the Northern Hemisphere. This term should not be confused with NORTH MAGNETIC POLE.

FLOATING FLOOR

A floor constructed so that the wearing surface is separated from the supporting structure by an insulating layer of mineral wool, resilient quilt, or other material to provide insulation against impact sound.

CALORIFIC VALUE

Quantity of heat liberated of propellants and explosives; properties normally determined are heat of combustion, heat of explosion, heat of formation, and heat of reaction.

CROSSED-FIELD DEVICE

Any instrument crossed-needle meter which uses the motion of electrons in perpendicular electric and magnetic fields to generate microwave radiation, either as an amplifier or oscillator.

MAGNETIC COUPLING

A coupling that connects two shafts by means of a magnetic field.

Related questions

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