Stargate SG-1

Using some of Emmerich's notes, Bill McCay wrote a series of five novels continuing the story the original creators had envisioned. See also: electronic amplifier, low noise amplifier, preamplifier, satellite in-line amplifier. Because of these differences, some fans of the film consider the television series as its own separate entity, rather than a proper sequel to the film. Optical amplifiers amplify light, through the process of stimulated emission. Others are most likely just oversights. An Amplidyne or Rototrol is a rotating machine like an electrical generator that provides amplification of electrical signals by conversion of mechanical energy to electrical energy. Other changes have been explained as advances in technology, such as more precise "aiming" by Earth's dialling computer (to compensate for the drift of the planets in 10,000 years) that prevents the frost effect. The bandwidth of magnetic amplifiers extends to the tens of kilohertz.

For example, it was sarcastically mentioned at one point that there is another Colonel named Jack O'Neil whose name is often mixed up with Jack O'Neill's (and who "has no sense of humor"). It is a non-electronic electrical amplifier with no moving parts. Several of these differences were simply ignored by the TV series, but others have been addressed in various episodes of Stargate SG-1. A magnetic amplifier is a transformer-like device that makes use of the saturation of magnetic materials to produce amplification. For example, in the film:. The carbon microphone was extremely important in early telecommunications until other types of amplifiers were available. Also, certain details were changed. By channeling a large electric current through the compressed carbon granules in the microphone, a small sound signal could produce a much larger electric signal.

This new team introduced many new concepts to make the Stargate universe into a workable weekly science fiction show. One of the first devices to amplify signals was the carbon microphone. MGM, which owned the rights, took Roland Emmerich and Dean Devlin's product and handed the reins to a new team of creators (Brad Wright and Jonathan Glassner). An audio amplifier is usually used to amplify signals such as music or speech. The original film did not develop as much of the setting's depth as would be needed in a television series. See main page: instrument amplifier. See Stargate SG-1 Comics for more information. An operational amplifier is a solid state integrated circuit amplifier which employs external feedback for control of its transfer function or gain.

A series of comics has also been published by Avatar Press. The amount of magnification (the "forward gain") is determined by the external circuit design as well as the active device. See the Stargate Atlantis article for more information. The essential role of this active element is to magnify an input signal to yield a significantly larger output signal. The magazine also features stories based on the Stargate Atlantis series. Most common active devices in transistor amplifiers are bipolar junction transistors (BJTs); metal oxide semiconductor field-effect transistors (MOSFETs) are also used. The magazine is available in the UK. In the earlier years of audio, vacuum tubes filled the active device role.

The Official Stargate Magazine produced by Titan Publishing has also published a series of short stories based on the series. Some claim this sound has more to do with the circuit topology and circuit design of the amplifier, than to the use of valves rather than transistors as the active gain devices. See the Stargate Atlantis article for more information. Valve amplifiers are widely, but not always correctly, associated with the valve sound. A series of Atlantis books is also forthcoming from Fandemonium Press. Today most sound systems use transistor amplifiers for economic reasons, but valve amplifiers remain popular for guitar amplification, for "high end" hi-fi systems and analog production and replay equipment in recording studios. They're not sold in bookstores in the United States due to licensing issues; however, they can be ordered from stores in the UK. The signal is restored to almost sinusoidal shape by the tuned circuit.

A series of books from Fandemonium Press is also available in the UK, Australia, New Zealand and South Africa. RF tuned amplifiers are usually Class C which means that they amplify less than 180° of the input signal. These books were written by Ashley McConnell and published by ROC. These classes are usually used in efficient low frequency amplifiers (such as audio and hi-fi) owing to their relatively high efficiency. Since 1999, several novels have been released based on the Stargate SG-1 series. Class AB and class B are essentially the same, transmitting about 180deg of the input signal to the output with each device. The Stargate SG-1 story and surrounding mythos has spawned many subsidiary productions which are often considered canon (fiction) with the occassional obvious exceptions. Where efficiency is not a consideration, most small signal linear amplifiers are designed as class A which means that one active device amplifies all portions (360deg) of the input signal.

Alternatively, to study the plot in detail it would be wise to begin with the first episode "Children of the Gods" and progress from there. All amplifiers can be classified by the angle of flow of the input signal through the amplifying device; see electronic amplifier. For an overview, see List of Stargate SG-1 episodes. Its critical components are active devices, such as vacuum tubes or transistors. The show currently has 194 confirmed or aired episodes. The most common type of amplifier is the electronic amplifier, commonly used in radio and television transmitters and receivers, high-fidelity ("hi-fi") stereo equipment, microcomputers and other electronic digital equipment, and guitar and other instrument amplifiers. As of 2005, SG-1 is on its ninth season and has since been renewed for a record-breaking tenth season believed to be screened for Summer 2006. There are numerous types of electronic amplifier depending upon the application.

Some of the more important planets are:. Note that more efficient amps run much cooler, and often do not need any fans even in multi-kilowatt designs. However, other letters, such as "M" have been seen instead of "P"; it was once thought that because all the planets in the Pegasus Galaxy were "M"-designated that "M" referred to planets in Pegasus rather than P; however, with the appearance of "P" planets in Season Two of Stargate Atlantis, we can now return to the old assumption that "M" stands for "Moon" and "P" for "Planet", and that all the numerically-designated worlds listed in Season One of Atlantis were moons. The efficiency of the amplifier limits the amount of total power output that is usefully available. However, if the local name of a planet is known then that name is usually used in place of the designator code. Commercially available class D amplifiers have reported efficiencies as high as 97%. Every planet other than Earth is assigned a code typically of the form P0X-000, where "0" is replaced by a number and "X" by any letter; these are derived from the coordinate-adjusting program developed by Samantha Carter in order to make the Abydos Cartouche gate addresses of any use. Modern Class AB amps are commonly between 35–55% efficient with a theoretical maximum of 78.5%.

A number of different planets are seen throughout the series. How much of the input power is usefully applied to the amplifier's output? Class A amplifiers are very inefficient, in the range of 10–20% with a max efficiency of 25%. Some aliens possess devices that can probe memories, detect lies, hold bodies in stasis, create holograms that can act as perfect avatars for the subject, and teleportation devices that can transport things here-and-there without the device itself being near. It is measured in either decibels or the peak output voltage produced by the amp when no signal is applied. Chiefly, the Goa'uld possess massive motherships and Death Gliders, and use Ring Transporters for small-distance movement, as well as Zat guns and staff weapons for attack, however it should be noted that they did not develop this technology, as a parasitic race all of their technology has been effectivley stolen from conquered races. How much noise is introduced by the amplification process? This is an undesirable thing that is the inevitable result of the electronics devices and components. There exist a number of more technologically advanced races and societies on the show, who have produced a variety of highly-advanced weapons, tools, and spacecraft. The total harmonic distortion (THD) is the sum of these components relative to the signal.

Humans from Earth are known by alien races as the Tau'ri. These are the harmonics. The Tollan hold a strict policy of not allowing other less advanced races to access their technology for fear the race will destroy themselves with it. You will sometimes see humps at even intervals along the graph at even multiples of that base signal. One of these advanced human races we see repeatedly are the Tollan, a heavily advanced race SG-1 saves from the brink of destruction in first contact with them. The largest signal on your analyzer should be the input signal at 1 kHz. The premise is that if Earth had not experienced the Dark Ages, it would also have developed to such advanced levels. Typically a sinusoidal signal of 1 kHz is used.

A few of the groups so far encountered were abandoned (usually due to a decline of easily mined naqahdah deposits) and have developed on their own to a level of technology far greater than that of contemporary Earth. Then a pure tone is applied to the amplifier input. Their inhabitants are often quite similar to the societies that were imported from Earth, culturally as well as technologically, with some adaptations based on their experiences with the Goa'uld. The amplifier output is connected to a spectrum analyzer, (a device which graphs frequency against amplitude). Most Goa'uld-controlled worlds remain at a lower level of technology than Earth because interference has prevented them from progressing. Harmonic distortion is fairly easy to measure. In the Stargate universe, the explanation for human presence on other planets is that the Goa'uld used Stargates to transport large numbers of humans to other planets for use as slaves. This distortion comes in several forms including harmonic distortion and intermodulation distortion.

Other alien races encountered are the benevolent Asgard, and the incredibly advanced Ancients, who appear mostly in their Ascended forms. The properties of amplifier circuits distort the signal. These aliens often pose as gods to enslave people. This is the maximum rate of change of output variable, usually quotes in volts per second (or microsecond). The parasite acts to take over the mind of the host and use their body, often providing the body with exceptional strength and longevity. Specified in high accuracy measurement systems. The chief alien race of SG-1 are the Goa'uld, an evil parasitic race that take humans and some other species for hosts. Time taken for output to settle to within a certain percentage of the final value say 0.1%.

While many of the planets in the Stargate universe house transplanted human populations, several alien races are also featured, and a few of them have important roles in the story. where BW is in Hz and Tr is in seconds. The Ori begin to make incursions into the Milky Way, with the ultimate goal of converting all humans to worshippers and wiping out the Ancients. Tr = BW/0.35. Due to an accidental visit by Daniel Jackson and Vala Mal Doran to the Ori's home galaxy, they draw the attention of the Ori to the Milky Way. For a Gaussian response system (or a simple RC roll off), the rise time is given by :. However, as they reached the peak of their enlightenment, the two groups began to differ in their moral beliefs and goals. The rise time of an amplifier is the time taken for the out put to change from 10% to 90% of its final level when driven by a step input.

The Ori and The Ancients evolved from the same original race, and long ago once lived together in the same galaxy. As an example, a good audio amplifier will have a −3 dB BW from around twenty hertz to about twenty kilohertz (the range of normal human hearing). These mortals are called Priors, and uphold a religion that worships the Ori, called Origin. Bandwidths for other response tolerances are sometimes quoted (−1 dB, −6 dB etc. One group of Ascended beings, the Ori, influence the mortal world through commanding mortals that they evolve and enhance. This is therefore also known as the −3 dB BW. Furthermore, factions of Ascended beings form and certain rebels begin to take a more active role in human affairs. The bandwidth BW of an amplifier is usually defined as the difference between the lower and upper half power points.

It is discovered that Ba'al fled to Earth and is rebuilding his power from there, whilst many Goa'uld have totally infected The Trust. Since the lowest useful level is limited by output noise, this is quoted as the amplifier dynamic range. In Season 9, Jack O'Neill leaves the SGC and SG-1 is filled in by Cameron Mitchell, with Hank Landry taking control of the SGC itself. This is the range usually quoted in dB between the lowest useful; output and the largest useful output level. Baal has to flee under the total success of the Jaffa Rebellion. Mathematically speaking, the gain is equal to the output level divided by the input level. Daniel Jackson then is de-Ascended once more and arrives at the SGC. This is usually measured in decibels (dB).

Daniel is killed, but finds himself in the Ascended plane again (again Oma has helped him), where Anubis is finally stopped in his plans by Oma. How much an amplifier increases the signal level is called the gain. Meanwhile, RepliCarter captures Daniel Jackson, and whilst she probes his mind for Ascended knowledge, Daniel takes control of her mind, and manages to halt all the Replicators in the galaxy long enough for the Superweapon to be realigned and fired. Most amplifiers can be characterised by a number of parameters. SG-1 and the Jaffa Rebellion get to it first and try to alter it to destroy Replicators instead. . In the Season 8 finale, Anubis seeks to destroy all life in the galaxy so he can remake it as he sees fit, and he seeks to do this using the Dakara Superweapon, the most powerful piece of Ancient technology known. The relationship of the input to the output of an amplifier — usually expressed as a function of the input frequency — is called the transfer function of the amplifier, and the magnitude of the transfer function is termed the gain.

A human-form-Replicator ('RepliCarter') is created in the image of Samantha Carter, who becomes the most powerful force in the galaxy. An amplifier can be considered to be any device that uses a small amount of energy to control a larger amount, although the term today usually refers to an electronic amplifier. Alongside this, the Replicators escape and begin to conquer even the System Lords. Another type of amplifier is the fluidic amplifier, based on the fluidic triode. He eventually comes to rule secretly over Ba'al as well. Relays can be included under the above definition of amplifiers, although their transfer function is not linear (that is, they are either open or closed). In Season 8, the System Lord Ba'al subsumes much of Anubis' power, but Anubis is discovered not to be dead due to his half-Ascended state. There are also mechanical amplifiers, such as the automotive servo used in braking.

In the Season 7 finale, an Ancient Outpost is located in Antarctica, and Jack O'Neill is able to use the weapon there to utterly defeat Anubis' entire fleet. Throughout Season 7, Anubis continues to wreak havoc across the galaxy whilst Daniel and the SGC search for the Lost City of the Ancients, where powerful technology will be found that can defeat Anubis. His transgression causes him to de-Ascend back to the human plane of existence, allowing him to re-join SG-1, alive again. However, Daniel is ultimately unable to stop Anubis as the other Ascended beings have a rule that interference in mortal affairs is prohibited.

Daniel promises to stop Anubis. However, in the Season 6 finale, Anubis threatens to destroy Abydos, the planet most dear to Daniel, save Earth. Occasionally, he appears to his friends to help them out, but is only visible to them alone, often causing them to think that they are hallucinating. In Season 6, his position is filled by Jonas Quinn; he is now engaged in cosmic affairs on a higher plane.

Near the end of Season 5, Daniel Jackson is killed, but Ascends with help from Oma Desala. Anubis gains great power by using Ancient technology and stealing Asgard technology. Anubis tried to do this as well, to harvest the vast knowledge and power in that plane, but was cast down again, leaving him in a dangerous half-Ascended state. The theme of Ascension is introduced, explaining that the Ancients survived extinction by ascending to a higher plane of being.

Anubis is considerably more evil than Apophis, and has much of the knowledge of the Ancients. After Apophis is conquered, another Goa'uld System Lord takes his place as the show's main villain, Anubis. SG-1 is then able to refocus its efforts on the malignant force of Apophis. The threat of these becomes so great that a final measure is taken, and, with the help of the Asgard, SG-1 manages to contain every Replicator within a time-dilation field that effectively postpones the problem of them for thousands of years.

Besides the Goa'uld, another threat arises in the early Seasons, namely a race of insentient machines called Replicators. The political powers on Earth are often at loggerheads over the Stargate, particularly after the programme is revealed to ambassadors from the main powers on Earth (France, China, Russia and Great Britain). In particular, rogue NID agents, which eventually become the elite syndicate known as The Trust, are constantly trying to steal the Stargate or use alien technology for their own means. In the background of the show, there is a constant attempt by forces on Earth to take over the Stargate Program.

It is later discovered that the Ancients were the most advanced race ever, and were the builders of the Stargates. They also meet races that have been surviving in the galaxy for millennia, such as the Nox, the Asgard, and the remnants of an extinct race that come to be known as the Ancients. SG-1 and the SGC make several alliances with other races in the galaxy, such as the Tok'ra, Goa'ulds who share their bodies with their hosts and are opposed to the System Lords, the Tollan, and other advanced human civilisations. System Lords usually have vast armies of footsoldiers, the bulk of these forces consisting of alien beings called Jaffa (although humans are sometimes used, despite their inferior size and strength of Jaffa).

All Goa'uld are parasitic beings that take control of other bodies (usually humans, whom they transported across the galaxy in the distant past). He was, however, but one of many System Lords who battle for power of the galaxy. The original villain of Stargate SG-1, Apophis, was a powerful Goa'uld System Lord who caused the Stargate program to be brought back into action when he attacked Earth at the beginning of the series. television history.

This will make Stargate the longest running science fiction television show in U.S. On October 24, 2005 Stargate SG-1 was renewed for an unprecedented tenth season. Although Richard Dean Anderson departs the show as a regular in Season 9, he appears in the first and third episodes of that season and has left the door open for future appearances. Stargate SG-1 continues to break records in terms of Nielsen Ratings for the Sci-Fi channel, while the eighth season two-part episode "Reckoning" was widely regarded by fans as one of the five best in the show's history.

TV Guide recently proposed that its popularity may be exceeding that of the Star Trek franchise. The show remains popular despite entering its ninth season on the air. Humans, as depicted in the series, are technologically behind some of the alien races the Stargate teams have met, but are rapidly gaining the ability to fight, defend, and benefit from the advances they have been exposed to in both significant and material ways. One of the most endearing qualities of Stargate SG-1 is that it takes place in the present day.

Cameron Mitchell became the new Commanding Officer of SG-1. Col. Carolyn Lam replaced Brightman and Frasier as Chief Medical Officer, and Lt. In Season 9, General Hank Landry replaced O'Neill as commander of the SGC, Dr.

O'Neill was promoted to Brigadier General and he in turn promoted Carter to Lieutenant Colonel and team leader of SG-1. Elizabeth Weir assumed temporary command of the SGC, after which she was reassigned to the Antarctic base and, subsequently, as leader of the "Atlantis" mission (depicted in Stargate Atlantis). Dr. At the end of Season 7, Hammond was promoted to Lieutenant General and reassigned to the "Office of Homeworld Security" in the Pentagon.

In later seasons, there was considerable participation in the Stargate program by civilians and non-Americans, including at least one Russian SG team. Marines. Air Force is in direct charge of the Stargate program, although from early on there was at least one SG team comprised of U.S. The U.S.

Originally led by Major General George Hammond, Stargate Command is based in the Cheyenne Mountain Air Force Station, Colorado. For Season 6, Jackson was replaced by Jonas Quinn, an alien human, but Jackson returned to the show for Season 7. In Season 3, Carter was promoted to a Major. Daniel Jackson and Teal'c, an alien Jaffa.

The four original members of SG-1 were Colonel Jonathan "Jack" O'Neill, Captain Samantha "Sam" Carter, Dr. Three attempts were made to reverse-engineer alien technology and build starships, leading to the production of the F-302 and BC-303 models. The Stargate teams were frustrated in initial efforts to acquire advanced technology to fight the Goa'uld from more advanced species and offshoots of humanity. The primary goal of the SG teams is to travel to other worlds through the Stargate and procure alien technology to help defend Earth against the Goa'uld, a galactically dominant alien race who became aware of this planet's now relatively advanced civilization after the recovery of Earth's Stargate and the subsequent destruction of Ra, a powerful Goa'uld System Lord (the events depicted in the 1994 movie).

The very existence of the SGC and all of its activities are covert and SCI-classified ("Sensitive Compartmented Information"). The series follows the adventures of four explorers designated as SG-1, one team among fifteen, who use an alien artifact called a 'Stargate' to travel the vast distances between planets, operating under the aegis of the United States Government's secret military base, Stargate Command (the SGC). . The two shows now run in tandem, with plots that are occassionally interconnected.

A spin-off series, Stargate Atlantis, began airing in July 2004. For Season 10, Claudia Black will be added as a new regular, reprising her role as Vala Mal Doran. Davis moved into the background in the eighth season and Anderson in the ninth; the latter season added new regulars Ben Browder and Beau Bridges. Actor Corin Nemec was a regular during the 6th Season, with Michael Shanks making only a few appearances.

The cast would change in later seasons. Davis. Created by Jonathan Glassner and Brad Wright, SG-1 originally starred Richard Dean Anderson, Michael Shanks, Amanda Tapping, Christopher Judge and Don S. In July 2005, the Sci-Fi Channel renewed SG-1 for a tenth season, making it the longest-running science fiction series on American television, surpassing The X Files's 202 episodes.

Seasons six, seven, eight, and nine were aired on the Sci-Fi Channel. The first episode was broadcast on July 27, 1997 on Showtime, which aired the series' first five seasons. MGM owns and licenses the show, and it is filmed in Vancouver, British Columbia, Canada. Contrary to the widespread belief of those who don't watch the show, it has absolutely no connection to Star Trek.

Unlike other science fiction franchises such as Star Trek, SG-1 is set in the present day, on Earth, and primarily involves humans. Stargate SG-1 (alternately spelled Stargåte, and popularly abbreviated as SG-1) is a television series based upon the 1994 science fiction film Stargate. See List of Stargate SG-1 cast for trivia related to casting. See Stargate-Oz Quotes.

O'Neill. Throughout the show, there are many references to The Wizard of Oz, mainly stated by Col. The Air Force Association recognized Richard Dean Anderson at its 57th annual dinner on September 14, 2004 for his work as actor and executive producer of the show and "for the show's continuous positive depiction of the Air Force." [1]. Jumper made a cameo appearance in "Lost City," the episode that was originally slated to be the show's last.

Ryan appeared in the episode "Prodigy" because of his fascination with science fiction, especially space exploration. Jumper, have appeared in the show, playing themselves. Ryan and John P. Two successive Chiefs of Staff of the USAF, Generals Michael E.

The USAF cooperates closely with the makers of the program. The recent incorporation of Ben Browder (Farscape) and the forthcoming incorporation of Claudia Black as regular characters and Lexa Doig (Andromeda) as a recurring character further cements this trend. This trend extends to Stargate Atlantis, which featured Colm Meaney (Star Trek: The Next Generation, Star Trek: Deep Space Nine) and Jewel Staite (Firefly), as well as Robert Patrick and Mitch Pileggi (both of The X-Files). These included John de Lancie (Star Trek: The Next Generation, Star Trek: Deep Space Nine, Star Trek: Voyager), Jolene Blalock & John Billingsley (Star Trek: Enterprise), Robert Picardo (Star Trek: Voyager), Rene Auberjonois (Star Trek: Deep Space Nine) Adam Baldwin (Firefly) and Claudia Black (Farscape).

Stargate SG-1 is notable for featuring many actors from other prominent science fiction series as guest stars on its show. Antarctica appears in Stargate SG-1 in the episodes "Solitudes", "Frozen", "Lost City", and in the Stargate Atlantis premiere "Rising". There are only three episodes of the series in which Teal'c (Christopher Judge) refers to Daniel Jackson (Michael Shanks) as "Daniel" as opposed to "Daniel Jackson": "The Broca Divide", "The First Commandment", and "Forever in a Day". place names) have been made throughout the series.

Numerous references to Vancouver culture (eg. Many of the minor characters (and the extras) are Vancouverites. The show is filmed in and around Vancouver. In the film, O'Neill didn't encouter Ra until after Daniel Jackson had discovered he was an alien.

In the episode "Children of the Gods," O'Neill told General Hammond that their "first clue" Ra was an alien was the fact that his eyes glowed. However, she is much older in the opening sequence of the film, which is set in that year. In the episode "The Torment of Tantalus", it was clearly stated Catherine Langford was twenty-one in 1945, which would make her about four years old in 1928. The first time Daniel Jackson sees the Stargate is after he figures out the seven-coordinate address system, but in the TV episode "Lost City", he tells Elizabeth Weir that "I remember when we were first trying to get the Stargate to work, I would just come here, and stare at it for hours.".

Jackson's wife's name was Sha'uri, rather than Sha're. Dr. Colonel Jack O'Neill's son was named Tyler rather than Charlie. Colonel Jack O'Neill's wife/ex-wife was named Sarah rather than Sara.

Colonel Jack O'Neill's name was spelled O'Neil. A few names were spelled differently or changed, which has been a source of in-jokes and pedanticism ever since: