magnetic needle


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Related to magnetic needle: magnetic compass

magnetic needle

a slender magnetized rod used in certain instruments, such as the magnetic compass, for indicating the direction of a magnetic field

magnetic needle

[mag′ned·ik ′nēd·əl]
(electromagnetism)
A bar magnet or collection of bar magnets which is hung so as to show the direction of the magnetic field.
In particular, a slender bar magnet, pointed at both ends, that is pivoted or freely suspended in a magnetic compass.
References in periodicals archive ?
And since a ship's safety might depend on its magnetic needle, it also became a flogging offense for the helmsman to be caught eating anything with garlic in it.
Senior Scientific's nanotechnology uses a magnetic needle and targeted magnetic nanoparticles that improve determination of Minimum Residual Disease (MRD) by orders-of-magnitude.
The Client Has Pulse Water Meters On It Have A Magnetic Needle Each Water Meter Is Improving, Calibrated And Calibrated Complete With Reed Drive And Radio Module Manufacturers Coronis According To The Type-Approval And In-Class Accuracy Of Which Are Taken From The Client.
Eventually a magnetic needle was put on a card marked with various directions, and because the needle was free to move all around the card, it was referred to as a magnetic compass (from a French word meaning "to go around").
Flynn, describing Flynn's magnetic needle leukemia cancer cell detection invention based on the use of nano particles.
Looking for the magnetic North and South Poles, which influenced the magnetic needles of compasses, became an object of study.