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Iris (stargate)




In the Sci-fi Television show, '' Stargate SG-1 '', the iris is a large, metal protective device that opens and closes over Earth's Stargate . The iris was designed by Stargate Command (SGC) to prevent unwanted travelers from emerging through the Stargate's Wormhole .


EARTH'S IRIS

The iris appears to have 20 overlapping blades that swing outwards to form a near-circular opening, and then close again afterwards. This is similar to the way a multi-bladed s to request the opening of the iris using their GDO s.

The original iris was installed in the pilot episode, . It was first seen when alloy.

  The Used This Technique Themselves In A Later Episode To Penetrate A "natural Iris" That Had Formed Over Edora(P5C-768)'s Stargate After It Had Been Hit By An Asteroid And Buried While Still Active "#ref_6">6 Transcript
  The Tollan Possessed Technology That Allowed Them To Walk Through Solid Matter, Which Also Allowed Them To Reintegrate Their Particles Through The Iris, Appearing As Though They Were Stepping Through It "#ref_7">7 Transcript Anubis attempted to arm warheads with this technology and send them through the iris to destroy Earth, but this plan was foiled by SG-18 Transcript
  The Iris Cannot Block Out Certain Types Of Energy The Original Iris Was Destroyed By The Gravitation Pull Of A Black Hole Later, Anubis Fired An Ancient Energy Weapon Into The Earth Stargate (the "http://wwwinformationdelightinfo/information/entry/Antarctica" class="copylinks">Antarctic gate) which caused it to overload and eventually cataclysmically explode It is noted that, although it did not completely deflect the Ancient energy weapon's discharge, it dissipated the energy enough to significantly prolong the time until the gate would explode9 Transcript Part 1 , [http://wwwstargate-sg1-solutionscom/wiki/602_%22Redemption_Part_2%22_Transcript Transcript Part 2]
  Also, When "http://wwwinformationdelightinfo/information/entry/Major_General" class="copylinks">Major General Bauer (then commander of the SGC) detonated a Naqahdah -enhanced nuclear warhead on a planet that the SGC was connected to through a Stargate, radiation was transmitted through the Stargate Closing the iris temporarily decreased the radiation in the gate room, however it would be a matter of time before the iris melted and the radiation transmitted freely10 [http://wwwstargate-sg1-solutionscom/wiki/415_%22Chain_Reaction%22_Transcript Transcript] Thankfully, the thirty-eight minute window managed to shut down the gate
  The ''' "http://wwwinformationdelightinfo/information/entry/Iris_Deactivation_Code" class="copylinks">Iris Deactivation Code ''' is a code transmitted through an open Stargate to request that the iris be opened to allow travellers through IDCs are transmitted using a GDO (Garage Door Opener) Each SG Team has a unique IDC In addition, certain allies of Earth, such as the Tok'ra and Master Bra'tac ,11 [http://wwwstargate-sg1-solutionscom/wiki/721_%22Lost_City_Part_1%22_Transcript Transcript Part 1], [http://wwwstargate-sg1-solutionscom/wiki/722_%22Lost_City_Part_2%22_Transcript Transcript Part 2] have IDCs
  '''Erebus''', Which Was A Forced Labor Camp For Rebel Jaffa To Construct Goa'uld Ha'tak Vessels Until They Were Worked To Death Had A Gate Shield Which Also Required A Signal To Deactivate It The SGC Was Able To Acquire The Signal During A Failed Attempt By "http://wwwinformationdelightinfo/information/entry/Bra'tac" class="copylinks">Bra'tac and Rya'c to escape to the Alpha Site, a fact that was witnessed by Daniel Jackson during his Ascension, allowing him to relay this information to the others following his return15 Transcript
  '''Tartarus''', Which Was A Planet Under The Control Of Anubis Was A Base Used For The Making Of Kull Warriors Also Possessed A Gate Shield However, Kull Warriors, With Their Energy-absorbing Suit, Can Easily Pass Through The Shield Without Requiring An IDC "#ref_16">16 Transcript Part 1 , Transcript Part 2