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Magnetism was a physical phenomenon caused by magnetic fields, which were themselves caused by Electromagnetism. Something exhibiting magnetism was said to be magnetic or magnetized. If that was their primary function, they were called a magnet.
In nature Edit
In nature, planets and moons might have magnetic fields. These could potentially be used taped into for an energy source. (TNG: "Final Mission", "The Host") The breakup of planet Psi 2000 was characterized by dramatic changes in its magnetic field, including at one point a four degree shift of the whole field. (TOS: "The Naked Time")
Solar flares might be indicated by large magnetic disturbances on the star surface. During the Dominion War, the crew of the IKS Rotarran was even able to directly trigger a devestating solar flare after locating a magnetic instability on a star and increasing its magnetic gradient. (TNG: "Relics": DS9: "Shadows and Symbols")
Ionised hydrogen might generate magnetic currents. Nucleonic particles such as those found in polaric fields were also highly magnetic, and if accumulated might even create a diomagnetic field. (ENT: "Cogenitor", "Similitude")
In 2266, an unidentified yellowish ore was found on Alfa 177, which was determined to be magnetic. magnetic deposits were also present on the Torothan homeworld. (TOS: "The Enemy Within";ENT: "Desert Crossing")
Magnetic waves were present in the Parvenium sector, and were surveyed by a Starfleet ship in 2368. Spatial rifts might also emit magnetic shock waves. (TNG: "The Inner Light"; DS9: "If Wishes Were Horses")
At least one living Magnetic organism was encountered, which was characterised by a magnetic flux pulsing almost like the beating of a heart. Furthermore the noncorporial Ux-Mal entity claimed at one point that their conciousness had been captured by the magnetic currents of Ux-Mal, though this was part of an elaborate lie. A Delta Quadrant Space-dwelling lifeform was also capable of generating strong magnetism.
As a technology Edit
Warp Drive design Edit
Magnetic technology was widely used in starship design, in particularly in feeding of matter and anti-matter into the warp core.
Generally, containing a volume of anti-matter might be done using a magnetic containment field or magnetic bottle, and transporting (as in beaming) it could be done in a magnetic vacuum field. (TNG: "11001001"; TOS: "That Which Survives", "The Immunity Syndrome")
The plasma flowing into the system was magnetic. (TNG: "Galaxy's Child"; DS9: "One Little Ship", etc) Antimatter containment relied on magnetic fields utilizing magnetic flow. On Constitution class ships, this was monitored using a Magnetic force indicator. (TOS: "That Which Survives"). Another key component in containing antimatter and preventing Warp core breaches was the magnetic interlock. (Star Trek: First Contact; DS9: "Our Man Bashir"). The Intrepid-class also had magnetic interlocks at the warp core. The Galaxy class featured and magnetic capacitors on the matter and anti-matter injector. One way of dealing with problems in the latter was resetting the magnetic fields through a magnetic quench. (TNG: "Hollow Pursuits") This class also featured magnetic coils, and magnetic seals at the antimatter chamber. (TNG: "Contagion") NX class starships used magnetic constrictors to align the positron stream, and constrictors were also used in the Intrepid class. (ENT: "Cold Front")
Containment and shielding Edit
magnetic shields might be deployed to block transporters from beaming someone in or out a certain area. Beaming through a shield was possible with a code. Such a setup was present at Rura Penthe in the 23rd century and at Aldea a century later. (Star Trek VI: The Undiscovered Country;TNG: "When The Bough Breaks")
Atachments and locks Edit
Doors were often magnetically sealed. Magnetic seals were aleary in use aboard Enterprise. The Amargosa observatory contained a magnetically sealed hidden door. (DS9: "Civil Defense"; ENT: "Acquisition";Star Trek Generations)
Other applications Edit
Intrepid-class ships might use magnetic spindle bearings, and its bridge consoles contained magnetic relays, which if overloaded might cause the console to explore. (VOY: "Fair Trade", "Once Upon a Time")
Magnetism in scans Edit
Magnetism could also be used as a sensor technique, through a magnetic sweep or a magnetic residual analysis. (TOS: "That Which Survives"; TNG: "The Cage") Magnetic signatures might be looked for to compare readings. Wiping a memory core with an Microdyne coupler left an unique magnetic signature. (TNG: "Time's Arrow";ENT: "Affliction")
The Borg were found to leave distinctive magnetic resonance traces.
Runabout hulls were made out of metallic composites that interacted with magnetic fields, the magnetic deflection of which caused extremely weak magnetic resonance patterns, which were distinctive enough to locate a runabout. Such weak fields might be detected with a differential magnetometer, a device developed in 2369. (DS9: "Battle Lines")
In 2373, the ship's engineer of a D'deridex class ship was ordered to intentionally slightly missalign one of the ship's nullifier cores, thus creating a small polarized magnetic distortion in space whenever the ship was in motion, making it detectable even though it was cloaked. (TNG: "Face of the Enemy")
A person might also figuratively be said to have a magnetic personality. James T. Kirk described Khan Noonien Singh as such upon first meeting him. Some time later, Kirk later in noted in his log that the women Harcourt Mudd peddled in had a magnetic effect on the male members of his crew, including himself. This was later revealed to be the result of the Venus drug. (TOS: "Mudd's Women")
Captain Kathryn Janeway, roleplaying as Queen Arachnia, once remarked that Doctor Chaotica could not possibly resist her magnetism. (VOY: "Shattered") Data also once claimed to have a magnetic personality, though only as a pun. (Star Trek Generations)
Other information Edit
See also Edit
- Hysteresis curve
- Magnetic energy
- Gravito-magnetic force
- Magnetic field
- Magnetic pole
- magnetic plasma guide
- Magnetic fluctuation
- Magnetic flux
- magnetic waveguide
- Magnetometric guided charge