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September, 1966
antimatter converter assembly
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Part of the warp drive system of Federation starships, including the U.S.S. Enterprise NCC-1701 and other Constitution class vessels.

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baffle plate
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Component of a Starfleet propulsion system, as with the U.S.S Antares. In 2266, Charles Evans caused the Antares to explode by making the baffle plate disappear. Another one that ruptured caused...

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Charlie X
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Charles Evans, the lone survivor of a crashed colonizing expedition to the planet Thasus, comes aboard the U.S.S. Enterprise from the S.S. Antares. But when the Antares' Captain Ramart contacts...

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ear receiver
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Communications device worn in the ear by Starfleet personnel in the 23rd century, used to privately monitor audio transmissions or screen out surrounding noise if needed.

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environmental suit
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Sealed protective clothing worn by Starfleet personnel in hostile environments. The style has changed over the years from a softer chromo-metallic fabric in the 2260s to harder-edged materialsin...

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intermix formula
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Mathematical equation used to determine the proper mix of matter and antimatter in the warp core reaction chamber among starship propulsion systems. Artificial wormholes could result if the mix is...

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lithium crystals
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Predecessor to dilithium as used in early starship warp drive reactors. Because the rare crystalline form was required, lithium so used had to be refined through an energy-intensive "cracking"...

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Man Trap, The
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The U.S.S. Enterprise arrives at planet M-113 to deliver supplies to Dr. Robert Crater and his wife, Nancy, whom Doctor Leonard McCoy was once romantically involved with. M-113 is home to the...

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matter/antimatter reaction chamber
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The actual intermix chamber at the heart of a warp propulsion system, as designed in Federation vessels, where matter and antimatter are safely allowed to react in the most efficient manner. The...

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Naked Time, The
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Spock and Joe Tormolen beam down to planet Psi 2000 to pick up a research party before the planet disintegrates. They find everyone has died, frozen when life support was turned off. Even...

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phaser type-3
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A Federation handheld phaser rifle weapon used in contingency situations where a type-1 or type-2 phaser would lack the power carried in the type-3.

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recorder marker
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A buoy with data-storage capability, also known as a flight recorder, carried aboard space vessels as a record of its activities in the event of cataclysmic loss. In 2265, the U.S.S. Enterprise...

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refrigeration unit
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General name for the cryostasis generator added to the life-support system of the U.S.S. Enterprise NCC-1701 in 2268 by commandeering Scalosians, who meant to keep the crew in stasis until needed...

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viewer
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General term for the visual displays found throughout Federation starships.  Viewers come in a variety of sizes, from desktop units to wall-mounted version such as that commonly found on the...

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warp drive
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The main propulsion system for most starships that is capable of faster-than-light travel. The core of the warp drive uses  to control the annihilation of matter and antimatter. This...

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Where No Man Has Gone Before
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Some years before this second pilot, the S.S. Valiant had encountered a unknown energy barrier at the rim of the galaxy. Something had then made its captain destroy his ship. The U.S.S....

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October, 1966
Enemy Within, The
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While orbiting the planet Alfa 177, the U.S.S. Enterprise experiences a transporter malfunction when Technician Fisher is beamed up from the planet with some magnetic ore on his clothing. Scotty...

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ionizer, transporter
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Component of a 22nd century transporter system. In 2266, damage to an ionizer caused a malfunction that created a duplicate of Captain Kirk over Alfa 177.

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Miri
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The U.S.S. Enterprise answers an old distress signal to find an unnamed planet that is almost an exact duplicate of Earth in the 1960s. A landing party beams down and discovers that 300 years...

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Mudd's Women
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The U.S.S. Enterprise pursues an unknown ship into an asteroid belt to save its crew before it's destroyed. The four people aboard are beamed on to the U.S.S. Enterprise; former nemesis Harry Mudd...

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What Are Little Girls Made Of?
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The U.S.S. Enterprise arrives in orbit around Exo III, to search for exobiologist Dr. Roger Korby. When Kirk asks Spock if Korby could possibly still be alive, Spock glances at Christine, then...

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November, 1966
Corbomite Maneuver, The
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While exploring an uncharted region of space, the U.S.S. Enterprise comes upon an alien space buoy which is cube-shaped and spins, warning ships away and blocking the starship's path. Kirk's...

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Dagger of the Mind
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When Dr. Simon van Gelder of the psychiatric staff at the Tantalus Penal Colony escapes to the U.S.S. Enterprise exhibiting signs of manic insanity, an enraged McCoy insists that Kirk investigate...

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deflectors
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Manipulatable energy forcefield or shield that can be generated around space vessels and other facilities for protection from natural hazards and enemy weaponry.   Transporters are...

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Menagerie, Part I, The
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The U.S.S. Enterprise and her crew are diverted by a signal from the former captain of the U.S.S. Enterprise on Starbase 11, and proceed to the call. When they arrive they find Captain Christopher...

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Menagerie, Part II, The
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The U.S.S. Enterprise and her crew are diverted by a signal from the former captain of the U.S.S. Enterprise on Starbase 11, and proceed to the call. When they arrive they find Captain Christopher...

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December, 1966
Balance of Terror
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The marriage of Angela Martine and Robert Tomlinson is interrupted when a Romulan bird-of-prey attacks and destroys Outpost 4, which guards the Neutral Zone between Federation and Romulan space....

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Conscience of the King, The
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Twenty-two years before stardate 2817.6, the governor of Tarsus IV, Kodos, evoked emergency martial law and ordered half of the planet's population executed. His intent was to address a severe...

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Shore Leave
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A U.S.S. Enterprise landing party beams down to an uncharted planet. The planet seems like a perfect candidate for shore leave with its "Earth-type" characteristics. Kirk sends McCoy down with the...

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January, 1967
Arena
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The U.S.S. Enterprise is in pursuit of an unknown alien ship which has destroyed a Starfleet base on Cestus III. In an uncharted area of space, both the alien ship and the Enterprise are caught by...

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Galileo Seven, The
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On its way to deliver medical supplies to plague-ridden Makus III, the U.S.S. Enterprise passes Murasaki 312. Since they are under Starfleet orders to inspect galactic phenomena such as this...

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hangar deck
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The shuttlecraft landing and storage facility found aboard Federation starships, derived from terran naval parlance. More modern usage of the 24th century has referred to the area as a shuttlebay.

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shields
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Forcefields that protect space vessels from damage by natural hazard or enemy attack. Synonyms include deflectors, deflector shields, or screens. Transporters cannot operate through raised shields.

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Squire of Gothos, The
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The U.S.S. Enterprise must cross an empty sector of space on their way to deliver supplies to colony Beta VI. In this space, they find an uncharted planet whose presence can't be explained. After...

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Tomorrow Is Yesterday
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When the U.S.S. Enterprise is thrown into a time warp by a black star, it ends up orbiting Earth in the 20th century. Omaha Air Base detects a peculiar UFO and sends a fighter plane, manned by...

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warp factor
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Warp factor is the unit used to measure faster-than-light travel, where 'c' is equal to the speed of light. Each increase of one warp is computed geometrically. Warp ten is theorized to be...

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February, 1967
bearing
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In celestial navigation, a mathematical expression describing a direction in space with relationship to a space vehicle. A bearing measures the angular difference between the current forward...

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Court Martial
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When the U.S.S. Enterprise puts in at Starbase 11 for repairs caused in an ion storm, Kirk gives his report of the circumstances of Lieutenant Commander Ben Finney's death to Commodore Stone. All...

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Return of the Archons, The
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The U.S.S. Enterprise is investigating Beta III, where the U.S.S. Archon disappeared over 100 years before. When the landing party exhibits strange behavior, Kirk sends another party down to...

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Space Seed
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A piece of one of history's great puzzles falls into place when Kirk's crew comes across the S.S. Botany Bay, an old-style, pre-warp sleeper ship from Earth that contains several bodies in stasis....

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Taste of Armageddon, A
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The U.S.S. Enterprise is ordered to pick up Ambassador Robert Fox, who is headed to planet Eminiar VII on a diplomatic mission. Upon arriving at the planet, the ship is warned away. Beaming to...

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tractor beam
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Graviton force beam used by starships to manipulate objects outside the ship. Tractors are commonly used for towing other vessels and guiding shuttlecraft through landing and launches.

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March, 1967
Alternative Factor, The
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While orbiting what should be a dead planet, the U.S.S. Enterprise experiences a moment of "nonexistence." Starfleet Command fears an enemy invasion and orders Kirk to find out what caused the...

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Devil in the Dark, The
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The U.S.S. Enterprise arrives to investigate reports of an unknown monster deep in the mining tunnels of Janus VI. The being is apparently destroying machinery and killing the miners, and has the...

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Errand of Mercy
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Kirk and Spock beam down to the surface of planet Organia to negotiate for the erection of a Federation base on that planet. Hostilities between the nearby Klingon Empire and Federation have...

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Mind-sifter
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Klingon interrogation device that probes the minds of its victims. At high setting, the sifter causes irreversible brain damage. In 2267, Commander Spock was subjected to questioning by Klingon...

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phaser type-1
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Starfleet handheld energy weapon in use since circa 2266. The Phaser Type-1 was commonly used when a show of force was not appropriate, such as in first contact and other off-ship missions...

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phaser type-2
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Larger handheld energy weapon used by Starfleet personnel since 2266. More powerful that the Type-1 variety, some Type-2 phasers were actually Type-1's mounted in a pistol grip. Like all phasers,...

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subsonic transmitter
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Device used to drive spores out of the colonists on planet Omicron Ceti III. The frequency sent out by the transmitter irritated individuals exposed to it as those itching powder had been applied...

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This Side of Paradise
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Expecting the colonists of Omicron Ceti III to be dead after three years of exposure to deadly Berthold rays, Kirk and Spock are surprised to find the colony alive and flourishing. Spock beams to...

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April, 1967
City on the Edge of Forever, The
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McCoy accidentally injects himself with an overdose of cordrazine, a drug which makes him exhibit signs of paranoia and madness, while treating an ailing Sulu on the Bridge. Delirious, he beams...

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mnemonic memory circuit
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Type of computer circuit used in modern databank access. A primitive circuit, composed of a variety of electrical and radio parts of the 1930s on Earth, was jury-rigged by Commander Spock to...

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Operation: Annihilate!
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Arriving at the planet Deneva, home of Kirk's only brother Sam and his family, the U.S.S. Enterprise picks up a transmission from a Denevan pilot who has steered his craft into the sun to destroy...

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ultraviolet satellite
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Artificial satellites designed to emit ultraviolet radiation from orbit. In 2267, the U.S.S. Enterprise NCC-1701 used 210 such satellites to bombard the surface of planet Deneva with ultraviolet...

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September, 1967
Amok Time
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When Spock begins to exhibit strange, erratic behavior, Kirk asks McCoy to conduct a medical examination. McCoy concludes that Spock is experiencing a potentially lethal internal distress. Spock...

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Changeling, The
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The U.S.S. Enterprise is sent to investigate the destruction of the Malurian system and its four billion inhabitants. When it arrives at the coordinates, the starship itself is threatened by a...

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Nomad
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Mechanical explorer sent from Earth in 2002. Nomad melded with an alien device named Tan Ru and the resulting robotic hybrid began destroying anything that was imperfect including, in 2267, itself.

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Who Mourns for Adonais?
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As the U.S.S. Enterprise nears the planet Pollux IV, a huge, green hand made of energy materializes in space, catching the U.S.S. Enterprise and holding it captive. Kirk and a landing party are...

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October, 1967
Apple, The
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When a landing party beams down to the planet Gamma Trianguli VI, they find what appears to be an idyllic paradise. They quickly discover, however, that the planet is deadly, sporting plants that...

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Catspaw
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On the planet Pyris VII, two beings known as Korob and Sylvia have been sent on a mission of conquest by their home world. Using a matter transmuter, they assume human form to welcome the U.S.S....

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Doomsday Machine, The
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Sent to investigate the destruction of several planetary systems, the U.S.S. Enterprise discovers a crippled starship, the U.S.S. Constellation, floating in space. Commodore Matthew Decker is the...

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impulse drive
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Propulsion system used aboard spacecraft for travel at subwarp speeds, employing traditional Newtonian action-reaction thrust physics. Full impulse speed is about one-quarter light speed,...

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Mirror, Mirror
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Caught in the beginnings of an ion storm, Kirk, McCoy and Uhura interrupt their negotiations with the Halkans for dilithium crystals, to return to the U.S.S. Enterprise. Scotty beams the landing...

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Tantulus field
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Weapon secretly used by Captain Kirk of the I.S.S. Enterprise in the mirror universe. The device tracked targets with a small viewscreen, enabling the operator to vaporize the target at the touch...

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transmuter
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Thought amplifier used by the aliens Korob and Sylvia. The transmuter could convert their thoughts into physical objects or convincing illusions. With the transmuter, Korob and Sylvia disguised...

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November, 1967
central control complex
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Interconnecting technology used by the android Norman in 2267 to control and instruct the 207,809 androids residing on Planet Mudd. Direct physical interface was obtained by placing the hands...

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dilithium
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Crystalline substance used in warp propulsion systems to regulate the matter/antimatter reactions that provide the energy necessary for faster-than-light speed. Naturally occurring dilithium is...

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I, Mudd
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Norman, an android pretending to be a member of the U.S.S. Enterprise crew, takes control of the starship and her crew, taking them to an unnamed planet where Kirk discovers an old nemesis ......

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Journey to Babel
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The U.S.S. Enterprise is appointed to transport ambassadors from many worlds to the Babel Conferences. Among those aboard are Ambassador Sarek of Vulcan and his human wife, Amanda — Spock's...

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Metamorphosis
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Assistant Federation Commissioner Nancy Hedford has become ill while trying to stop a war on Epsilon Canaris III. The shuttlecraft Galileo is assigned to take her to the U.S.S. Enterprise, where...

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nanopulse laser
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Engineering device of advanced design created by the android inhabitants of Planet Mudd.

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Universal Translator
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Device for translation of spoken languages in real-time communication. It operates by scanning brain-wave frequencies and using the results to create a basis for translation. Captain Kirk used a...

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December, 1967
Deadly Years, The
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On the way to Starbase 10, the U.S.S. Enterprise stops to deliver supplies to the colonists of Gamma Hydra IV. A landing party consisting of Kirk, Spock, McCoy, Scott, Lieutenant Galway and Chekov...

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Friday's Child
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Sent to the planet Capella IV to negotiate a mining treaty, Kirk and a party beam to the surface. They find the Capellans to be warlike and tradition-bound people. Kirk also finds that a Klingon...

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Obsession
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Eleven years ago, the U.S.S. Farragut encountered a deadly cloud creature with vampire-like tendencies. James T. Kirk was on board the Farragut at that time as they entered the region of Tycho IV....

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Trouble With Tribbles, The
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When the U.S.S. Enterprise receives a top-priority order to protect a shipment of quadrotriticale grain on Deep Space Station K-7, Kirk is irritated to be guarding a shipment of "wheat." But the...

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Wolf in the Fold
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Kirk and McCoy decide to take Scotty, who is recovering from a head wound accidentally caused by a female crew member, to a nightclub on the planet Argelius II. Scotty becomes infatuated with a...

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January, 1968
Chicago Mobs of the Twenties
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A history volume left behind accidentally by the visiting crew of the U.S.S. Horizon in 2169 on Sigma Iotia II, before the development of the Federation Prime Directive of non-interference. "The...

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collar of obedience
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Disciplinary choker-collars worn by drill thralls on planet Triskelion that would constrict the wearer's neck of when activated, causing pain.

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Gamesters of Triskelion, The
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During a routine transport to a planet, Captain Kirk, Lieutenant Uhura and Ensign Chekov are intercepted and abducted by a powerful and distant transporter beam. Arriving, literally, flat on their...

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Immunity Syndrome
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The U.S.S. Enterprise is en route to Starbase 6 for shore leave when Uhura receives a jumbled message from which all she can make out is a sector coordinate and the name U.S.S. Intrepid, a...

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Piece of the Action, A
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The planet Sigma Iotia II's last visit by the Federation was by the U.S.S. Horizon ... a hundred years before. Realizing the lapse in monitoring the planet, the Federation sends the U.S.S....

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transtator
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Electronic component that is the basis of most twenty-third century Starfleet equipment. Dr. McCoy left a communicator on planet Sigma Iotia II in 2268, raising fears that the natives would use it...

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February, 1968
By Any Other Name
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When the U.S.S. Enterprise answers a distress call from a small planet, the landing party is captured by a group of agents from the Kelvan empire, located in the distant Andromeda galaxy. The...

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Flintlock
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Primitive armament that fires projectiles via an explosive charge. In 2267, the Klingons supplied the village people of Tyree's planet with these weapons, tilting the societal balance of power and...

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Patterns of Force
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The U.S.S. Enterprise is sent to planet Ekos to investigate the disappearance of an old Academy professor of Kirk's — historian John Gill. The Enterprise is attacked by an armed probe with a...

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Private Little War, A
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Captain Kirk leads a survey mission to a peaceful, primitive planet which he visited 13 years before as a lieutenant. He is dismayed to see a group of villagers armed with flintlocks, weapons they...

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Return to Tomorrow
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The U.S.S. Enterprise tracks a mysterious SOS to an ancient planet presumed long dead. The crew hears a voice from a telepathic being named Sargon, who asks Kirk to beam down to the surface. When...

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rubindium crystal
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A gemstone which provides one component of a subcutaneous transponder. When imprisoned on planet Ekos in 2268, Commander Spock used crystals from two transponders to create a primitive laser.

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subcutaneous transponder
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Starfleet-issue device inserted into the skin to enable the wearer of such a device to be tracked. In 2268, Dr. McCoy placed two such devices in Captain Kirk and Commander Spock before they beamed...

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March, 1968
Assignment: Earth
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Sent back in time to find out how Earth managed to survive without destroying itself, the U.S.S. Enterprise inadvertently beams aboard a space traveler, Gary Seven, along with his black cat, Isis....

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Beta 5 computer
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Powerful computer system built by unknown extraterrestrials, used by Gary Seven on Earth in 1968 and secluded into his New York apartment.

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Bread and Circuses
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The U.S.S. Enterprise finds the wreckage of the S.S. Beagle, with no survivors, orbiting near the Planet 892-IV. When Kirk, Spock, and McCoy beam to the planet's surface, they find a disheveled...

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duotronics
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Breakthrough computer system invented in 2243 by Dr. Richard Daystrom, used until its replacement by isolinear technology as the basis of computers for over 80 years on Federation starships --...

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M-5
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The fifth incarnation of the multitronic computer system, tested by Dr. Richard Daystrom in 2268 as his latest try at surpassing his own breakthrough duotronic system.   Like its...

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Omega Glory, The
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The U.S.S. Enterprise finds a crewless starship, the U.S.S. Exeter, in orbit around the planet Omega IV. The boarding party from the U.S.S. Enterprise contracts a virus that may have killed the...

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Ultimate Computer, The
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The U.S.S. Enterprise is chosen to be the test ship for the new M-5 multitronic computer system, a computer meant to be able to run a starship without human intervention. Also aboard for the test...

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September, 1968
Enterprise Incident, The
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Seeming tense and erratic, Captain Kirk takes the U.S.S. Enterprise into Romulan space and the ship is immediately surrounded by Romulan warships. Kirk and Spock beam aboard the Romulan flag-ship...

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ion propulsion
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Spacecraft drive system that used magnetic fields to drive electrically charged gases. Ion propulsion was used in Class F shuttlecraft in the 2260s, but its application by a ship from Sigma...

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Spock's Brain
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The U.S.S. Enterprise is on a routine mission in deep space when a beautiful young woman beams onto the bridge. Without a word, she touches a band on her wrist and everyone is rendered...

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