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| + | [[File:Tree_Diagram.png|thumb|240px|Orihime-1 satellite up-close.]] |
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| − | The best super-computer in the world, according to the best renowned scientists in Academy City. This computer was loaded into the satellite, Orihime 1, to monitor many aspects of the city such as weather patterns and security.[[File:Toaru_Majutsu_no_Index_E06_06m_04s.jpg|thumb|250px|Tree Diagram being destroyed by Index's Dragon Breath.]] |
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| + | The {{nihongo|'''Tree Diagram'''|<ruby><rb>樹形図の設計者</rb><rp> (</rp><rt>ツリーダイアグラム</rt><rp>) </rp></ruby>|Jukeizu no Sekkeisha|lit. "Designer of the Tree Diagram"}} was a super-computer which, according to the best renowned scientists in [[Academy City]], was the best in the world. It served as a powerful computation device for many sectors of Academy City, before its sudden destruction due to unforeseen events. |
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| + | ==Principles== |
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| + | ===Use and Capabilities=== |
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| + | Under the pretext of weather prediction,<ref name=IndexV3Ch2Pt2>[[Toaru Majutsu no Index Light Novel Volume 03]] Chapter 2 Part 2</ref> Tree Diagram was loaded into the satellite, {{nihongo|'''Orihime 1'''|おりひめ1号|Orihime Ichi-gō}}, to monitor many aspects of the city such as weather patterns and security. The true reason it was loaded onto a satellite orbiting space was to protect it from external enemies, such as terrorists, human supremacists, and industrial spies.<ref name=IndexV3Ch2Pt2 /> |
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| + | The computer was so powerful that rather than forecast weather, it predicted it.<ref name=IndexV3Ch2Pt2 /> Once a month, it predicts the movement of the particles in the atmosphere of the entire globe and calculates one month's worth of weather in one go.<ref name=RailgunCh32>[[Toaru Kagaku no Railgun Manga Chapter 032]]</ref><ref name=IndexV3Ch2Pt2 /> The [[Tree Diagram Information Receival Center]] located in the [[23rd School District]] is the one communicating with Tree Diagram. They send requests to it and also receive information and data from the satellite. |
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| + | Another use of this computer is to aid researchers with their experiments, such as drug reactions, physiological reactions, electrical reactions, etc. Permission is very difficult to acquire since the Academy City's Board of Directors are the only ones with access to Tree Diagram. One permitted use of Tree Diagram was for the [[Academy City Level 6 Experiments|'Level 6 Shift' Project]]. |
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| + | The machine is so powerful that it would take 25 years for any other machine to catch up to its level.<ref name=IndexV3Ch2Pt2 /> |
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| − | Another use of this computer is to aid researchers with their experiments. This consent, on the other hand, is very difficult to acquire since the Academy City's Board of Directors are the only ones who are able to permit access to Tree Diagram. One permitted use of Tree Diagram was for the 'Sisters' Project, to calculate a way to achieve Level 6. According to the results taken from this computer, by taking the best Level 5 Power User (Accelerator), it was calculated that if about 128 Level 5 psychics were defeated by Accelerator, he would achieve Level 6. However, Academy City only had six other level 5 psychics, so by using 20000 Level 3 clones of [[Misaka Mikoto]], they expected the same result. |
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| + | ===Remnant=== |
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| + | {{nihongo|'''Remnant'''|<ruby><rb>残骸</rb><rp> (</rp><rt>レムナント</rt><rp>) </rp></ruby>|Zangai (Remunanto)|lit. "Wreckage"}} refers to the debris left behind by Tree Diagram after it was [[Destruction of Tree Diagram|destroyed]] by [[Index]] on July 28th of the current year of the [[Story Timeline|timeline]].<ref name=RailgunCh33>[[Toaru Kagaku no Railgun Manga Chapter 033]]</ref> Specifically, it is the core of the supercomputer of the Tree Diagram that can be used to repair it. |
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| + | ==Chronology== |
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| + | ===Toaru Majutsu no Index=== |
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| + | ====Index Arc==== |
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| + | {{Main|Index Arc}} |
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| + | [[File:Toaru_Majutsu_no_Index_E06_06m_04s.jpg|thumb|220px|Tree Diagram being destroyed by Index's Dragon Breath.]] |
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| ⚫ | During [[Kamijo Touma|Touma's]] fight with [[Index]] (while being possessed by John's Pen), Index accidentally directs a Dragon Breath's attack to space and [[Destruction of Tree Diagram|destroys]] the Orihime 1 satellite, destroying Tree Diagram permanently. Meanwhile, Academy City covers up this incident by announcing that Tree Diagram can't be contacted for an indefinite period. |
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| + | ====Tree Diagram Remnant Arc==== |
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| ⚫ | During Touma's fight with Index (while being possessed by |
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| + | {{Main|Tree Diagram Remnant Arc}} |
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| + | It was revealed that the core of Tree Diagram still remains, and that the satellite might be reparable if it is retrieved. Several countries in the world [[September space launches|started launching their shuttles]] to recover pieces of the satellite, using the ruse of "showing-off" their space programs to the world and proving their reliability to sponsors.<ref name=IndexV8Ch1>[[Toaru Majutsu no Index Light Novel Volume 08]] Chapter 1</ref> However, Academy City was able to recover the most important part of Tree Diagram, the Remnant. |
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| ⚫ | The Level 4 Teleporter,[[Musujime Awaki| Awaki Musujime]], is sent to retrieve it while [[Misaka Mikoto]] -- after hearing that the satellite might be repaired -- tried to stop Awaki on her own. During this incident [[Shirai Kuroko|Kuroko Shirai]] also met Awaki and fought her twice doing her job as a member of [[Judgment]]. Awaki successfully escapes, but is cornered and beaten by [[Accelerator]] who unexpectedly snuck out of the hospital at [[Last Order|Last Order's]] request. The core is subsequently destroyed during the fight with Accelerator, and Tree Diagram is now considered beyond repair. |
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| + | ===Toaru Kagaku no Railgun=== |
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| + | ====Level Upper Arc==== |
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| + | {{Main|Level Upper Arc}} |
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| + | It is revealed that [[Kiyama Harumi]] requested to use Tree Diagram for certain calculations 12 times for her search on curing her [[Child Error]] students before giving up and opting to create the [[Level Upper]] Network instead for her calculations.<ref name=RailgunEp11>[[Toaru Kagaku no Railgun Episode 11]]</ref> It is later revealed to have been inspired by Mikoto's clones' Misaka Network.<ref name=RailgunCh16>[[Toaru Kagaku no Railgun Manga Chapter 016]]</ref> |
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| + | ====Sisters Arc==== |
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| + | {{Main|Sisters Arc}} |
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| + | At the end of her rope in trying to stop her clones from being killed in the Level 6 Shift, Mikoto decides that she will manipulate the calculations of Tree Diagram. Her plan is to manipulate it to produce an error in a simulation between Accelerator and Mikoto fighting, determining that the scientists will rely on Tree Diagram to recalculate the data and create a prediction that doesn't involve the Sisters.<ref name=RailgunCh32 /> |
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| + | [[File:Tree Diagram shattered.png|thumb|220px|right|Shattered Tree Diagram]] |
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| ⚫ | |||
| + | She goes to the 23rd School District and breaks into the Tree Diagram Information Receival Center. She discovers there that her plans have been ruined, as Tree Diagram has already been destroyed and yet the experiments continue. Mikoto later determines that since the Tree Diagram calculated that Mikoto will be killed on the 185th move against Accelerator, she needs to die on the first move alone to ruin the experiment, knowing that the Tree Diagram is no longer available for recalculations if such a scenario occurs.<ref name=RailgunCh33 /> |
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| + | |||
| + | ==Other Appearances== |
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| + | ===Pseudepigrapha Railgun=== |
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| + | ====Toaru Anbu no Conference==== |
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| + | {{Main|Toaru Anbu no Conference}} |
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| + | In a short omake comic, a bunch of scientists attempting to create the perfect imitation of Mikoto's physical appearance discover that they have yet to learn what underwear Mikoto wears. They first try to use the Tree Diagram for calculating Mikoto's panties, but is denied by Tree Diagram itself, stating that they shouldn't use it for "stupid things".<ref name=RailgunAC>[[Toaru Anbu no Conference]]</ref> |
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| + | |||
| + | In a humorous reference, [[Toaru Kagaku no Railgun Manga Chapter 033|Chapter 33]] of the ''Toaru Kagaku no Railgun'' manga, during Mikoto's infiltration of the [[Tree Diagram Information Receival Center]], a report is shown, among other things, referring to the request for Tree Diagram to calculate Mikoto's panties. Mikoto however, doesn't notice this.<ref name=RailgunCh33 /> |
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| + | |||
| + | ==Trivia== |
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| + | *The ''Orihime 1'' and ''[[Hikoboshi II]]'' satellites may be a reference to the {{W|ETS-VII}} launched by Japan on 1997, where two of the satellite's body is named ''Hikoboshi'' and ''Orihime''. |
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| + | *Orihime is the Japanese name for Vega, part of the Summer Triangle together with {{W|Altair}} and {{W|Deneb}}. The naming choice for it and the Hikoboshi II (Japanese name for Altair) may be a reference to {{W|Tanabata}}. |
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| + | |||
| + | ==References== |
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| + | {{Reflist|2}} |
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| + | {{Academy City}} |
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[[Category:Terminology]] |
[[Category:Terminology]] |
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[[Category:Science]] |
[[Category:Science]] |
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| + | [[Category:Academy City Technology]] |
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| + | [[Category:Level 6 Shift Project]] |
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| + | [[Category:Space]] |
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Revision as of 01:29, 13 September 2019
Orihime-1 satellite up-close.
The Tree Diagram (
Principles
Use and Capabilities
Under the pretext of weather prediction,[1] Tree Diagram was loaded into the satellite, Orihime 1 (おりひめ1号 Orihime Ichi-gō?), to monitor many aspects of the city such as weather patterns and security. The true reason it was loaded onto a satellite orbiting space was to protect it from external enemies, such as terrorists, human supremacists, and industrial spies.[1]
The computer was so powerful that rather than forecast weather, it predicted it.[1] Once a month, it predicts the movement of the particles in the atmosphere of the entire globe and calculates one month's worth of weather in one go.[2][1] The Tree Diagram Information Receival Center located in the 23rd School District is the one communicating with Tree Diagram. They send requests to it and also receive information and data from the satellite.
Another use of this computer is to aid researchers with their experiments, such as drug reactions, physiological reactions, electrical reactions, etc. Permission is very difficult to acquire since the Academy City's Board of Directors are the only ones with access to Tree Diagram. One permitted use of Tree Diagram was for the 'Level 6 Shift' Project.
The machine is so powerful that it would take 25 years for any other machine to catch up to its level.[1]
Remnant
Remnant (
Chronology
Toaru Majutsu no Index
Index Arc
- Main article: Index Arc
Tree Diagram being destroyed by Index's Dragon Breath.
During Touma's fight with Index (while being possessed by John's Pen), Index accidentally directs a Dragon Breath's attack to space and destroys the Orihime 1 satellite, destroying Tree Diagram permanently. Meanwhile, Academy City covers up this incident by announcing that Tree Diagram can't be contacted for an indefinite period.
Tree Diagram Remnant Arc
- Main article: Tree Diagram Remnant Arc
It was revealed that the core of Tree Diagram still remains, and that the satellite might be reparable if it is retrieved. Several countries in the world started launching their shuttles to recover pieces of the satellite, using the ruse of "showing-off" their space programs to the world and proving their reliability to sponsors.[4] However, Academy City was able to recover the most important part of Tree Diagram, the Remnant.
The Level 4 Teleporter, Awaki Musujime, is sent to retrieve it while Misaka Mikoto -- after hearing that the satellite might be repaired -- tried to stop Awaki on her own. During this incident Kuroko Shirai also met Awaki and fought her twice doing her job as a member of Judgment. Awaki successfully escapes, but is cornered and beaten by Accelerator who unexpectedly snuck out of the hospital at Last Order's request. The core is subsequently destroyed during the fight with Accelerator, and Tree Diagram is now considered beyond repair.
Toaru Kagaku no Railgun
Level Upper Arc
- Main article: Level Upper Arc
It is revealed that Kiyama Harumi requested to use Tree Diagram for certain calculations 12 times for her search on curing her Child Error students before giving up and opting to create the Level Upper Network instead for her calculations.[5] It is later revealed to have been inspired by Mikoto's clones' Misaka Network.[6]
Sisters Arc
- Main article: Sisters Arc
At the end of her rope in trying to stop her clones from being killed in the Level 6 Shift, Mikoto decides that she will manipulate the calculations of Tree Diagram. Her plan is to manipulate it to produce an error in a simulation between Accelerator and Mikoto fighting, determining that the scientists will rely on Tree Diagram to recalculate the data and create a prediction that doesn't involve the Sisters.[2]
Shattered Tree Diagram
She goes to the 23rd School District and breaks into the Tree Diagram Information Receival Center. She discovers there that her plans have been ruined, as Tree Diagram has already been destroyed and yet the experiments continue. Mikoto later determines that since the Tree Diagram calculated that Mikoto will be killed on the 185th move against Accelerator, she needs to die on the first move alone to ruin the experiment, knowing that the Tree Diagram is no longer available for recalculations if such a scenario occurs.[3]
Other Appearances
Pseudepigrapha Railgun
Toaru Anbu no Conference
- Main article: Toaru Anbu no Conference
In a short omake comic, a bunch of scientists attempting to create the perfect imitation of Mikoto's physical appearance discover that they have yet to learn what underwear Mikoto wears. They first try to use the Tree Diagram for calculating Mikoto's panties, but is denied by Tree Diagram itself, stating that they shouldn't use it for "stupid things".[7]
In a humorous reference, Chapter 33 of the Toaru Kagaku no Railgun manga, during Mikoto's infiltration of the Tree Diagram Information Receival Center, a report is shown, among other things, referring to the request for Tree Diagram to calculate Mikoto's panties. Mikoto however, doesn't notice this.[3]
Trivia
- The Orihime 1 and Hikoboshi II satellites may be a reference to the ETS-VII launched by Japan on 1997, where two of the satellite's body is named Hikoboshi and Orihime.
- Orihime is the Japanese name for Vega, part of the Summer Triangle together with Altair and Deneb. The naming choice for it and the Hikoboshi II (Japanese name for Altair) may be a reference to Tanabata.
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Toaru Majutsu no Index Light Novel Volume 03 Chapter 2 Part 2
- ↑ 2.0 2.1 Toaru Kagaku no Railgun Manga Chapter 032
- ↑ 3.0 3.1 3.2 Toaru Kagaku no Railgun Manga Chapter 033
- ↑ Toaru Majutsu no Index Light Novel Volume 08 Chapter 1
- ↑ Toaru Kagaku no Railgun Episode 11
- ↑ Toaru Kagaku no Railgun Manga Chapter 016
- ↑ Toaru Anbu no Conference