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|world=Roshar
|universe=[[Cosmere]]
|books=[[The Stormlight Archive]], [[Yumi and the Nightmare Painter]]
}}
{{update|sa4|yumi}}
A '''fabrial''' is a [[Light]]-powered mechanical device from [[Roshar]] that uses [[spren]]
{{file ref|Navani1.jpg|text=Navani's Notebook: One}}
== Mechanics ==
{{image|Navani2.jpg|An excerpt from [[Navani's notebook]] depicting an Emotion Bracelet and examples of Stormlight patterns|side=right|width=250px}}
Creating modern fabrials requires trapping the proper type of [[spren]] in a gemstone cut for that purpose.{{book ref|sa3|33}} To trap the spren, artifabrians lure it to a gemstone with something it loves and knows well.{{epigraph ref|sa4|1}} The gemstone must not be fully infused, but needs to have some Light inside of it. Around seventy percent of the maximum capacity works best.{{epigraph ref|sa4|2}}
Creating modern fabrials requires trapping the proper type of [[spren]] in a gemstone cut for that purpose.{{book ref|sa3|33}} To trap the spren, artifabrians lure it to a gemstone with something it loves and knows well. Once it is lured into examining the gemstone, artifabrians drain the Light from the gemstone, using the Arnist Method, which involves placing some larger gemstones around the gemstone to drain the Light, using a [[larkin]], or using tuning forks.{{book ref|sa4|3}}{{book ref|sa4|4}}{{book ref|sa4|42}} If the Light is sucked out of the gem quickly enough, the spren will be sucked into the gemstone. After the spren is stuck, the spren can be manipulated to the artifabrian’s content.{{book ref|sa4|5}} The types of spren that can be captured in a [[polestone]] depend on the gem's type and color, implying that there are thousands of possible combinations.{{file ref|Navani1.jpg|text=Navani's Notebook: One}}{{book ref|sa4|42}} These fabrial-gems are encased in a metal wire frame, which determines the effect of the fabrial, along with the type of spren. Their power can be determined by the pattern of Light that gets filtered through the gemstone, although it cannot be seen with the naked eye.{{file ref|Navani2.jpg|text=Navani's Notebook: Two}} Spren corrupted by [[Sja-anat]] will behave differently in a fabrial.{{wob ref|11659}} It is possible for synthetic gemstones to be used in fabrials.{{wob ref|2702}}▼
▲
In contrast to [[Surgebinding]] or [[Old Magic]], most fabrials can be operated by anyone, as long as they know how to do so (the only exception being the [[Oathgate]]s, which require a Radiant to activate, although that might be a security measure rather than a crucial design element).{{book ref|sa2|86}} Some, like heatrials, are even capable of functioning without human input.{{book ref|sa2|4}} The self-contained nature of fabrials sets them apart from most manifestations of [[Investiture]] in the [[cosmere]], wherein the magic is accessed and directed by the user (often with specific requirements or limitations).{{wob ref|10311}}{{wob ref|3488}}{{wob ref|6247}}
=== Surge Fabrials ===
Unlike modern fabrials, the ancient [[Surge]] fabrials were created by persuading Radiant spren to manifest in the Physical Realm.{{book ref|sa4|9}}{{book ref|sa4|46}} Their functioning is also different: for example, [[Soulcaster]]s require a request for aid, which is unnecessary in modern fabrials.{{book ref|sa3|i|4}} However, they still do involve spren being bound to gemstones in some way - two large spren can be seen guarding and controlling the [[Oathgates]] in [[Shadesmar]].{{book ref|sa3|116}} So long as
=== Reactions to Metal ===
Once trapped in a gem, spren respond to stimuli in consistent and predictable ways. The metal frame surrounding the gem creates the stimuli the spren react to - pressing metal against a flamespren in a ruby increases and decreases heat.{{book ref|sa3|33}} Spren react to different metals in different ways, with their behavior generally paralleling the [[Allomantic]] powers for each individual metal
; Zinc:
The ardent [[Rushu]]'s experimentation with this behavior results in a mobile chair for [[Rysn]] which hovers by being vertically reverse coupled to a heavy object (an anchor which is allowed to fall a short distance) but remains laterally uncoupled allowing for free motion when pushed. Rushu notes that the chair's rotational motion remains coupled, but believes it would be possible to fix that upon further refinement.{{book ref|sa3.5|8}}
There are no confirmed instances of other types of fabrial being modified by aluminum in the same way. Reverser fabrials are stated to operate similarly to conjoiners and therefore likely behave similarly under aluminum modification.{{book ref|sa3.5|5}} It is unclear what effect aluminum would have on fabrials that do not rely on two paired gemstones. Attractor fabrials would have a "shadow" if partially blocked by aluminum. Though the attraction will bend round the edges, in the same way as light would bend.{{wob ref|16021}}
=== Special Interactions ===
==== Augmenters ====
Altering fabrials that increase or enhance an attribute are known as augmenters. They work best with forces, emotions or sensations.{{book ref|sa4|part=ars}} [[Half-shard]]s and [[Grandbow]]s are examples of augmenters that increase durability.{{book ref|sa4|part=ars}}{{book ref|sa1|12}} There are also heating fabrials that generate heat, sometimes called warmers or heatrials.{{book ref|sa1|15}}{{book ref|sa3|62}}{{book ref|sa3|100}} Heatrials were first developed just before [[Assassination of Gavilar|Gavilar's feast]], though earlier models were much less effective.{{book ref|sa3|prologue}} Painrials that enhance the feeling of pain also fall under this category.{{book ref|sa3|118}} Pewter is
==== Diminishers ====
{{image|Navani flying fabrial by Marie Seeberger.jpg|side=right|height=250px|[[Navani]] using a conjoiner fabrial}}
Pairing fabrials are, as the name suggests, created in pairs that can move in parallel, or the opposite, over great distances. This category was a recent discovery during the [[War of Reckoning]].{{book ref|sa4|part=ars}} Force is conserved between each pair of fabrials, and the force required to move one is equivalent to one required for moving both. The farther apart the two halves are, the more resistance is felt when moving them.{{book ref|sa4|3}} Despite limitations in how far the fabrials can be separated and still work (dictated by certain processes during manufacture), conjectures about possible applications are being discussed.{{book ref|sa4|part=ars}}
By using raysium, a half-spren trapped in one half of a conjoined pair of gems can be transferred to another gem, not part of the original pairing. This can lead to an asymmetry between the movements of the two spren halves, as moving a larger gem a certain distance will now make its smaller paired counterpart move a larger distance. This does not, however, allow for force multiplication.{{book ref|sa4|84}}
==== Conjoiners ====
=== Warning fabrials ===
Warning fabrials detect things and give notice to the user. Their range depends on
==== Alerters ====
==== Suppressor ====
{{for|suppression fabrial}}
These
==== Aura ====
▲These Fabrials can suppress Surgebinding and Invested entities, such as Fused, or Radiant Spren
{{for|aura fabrial}}
These fabrials can analyze the [[spiritweb]] and [[Connection]]s of a subject.{{book ref|yumi|32}}
===Possible Fabrials===
==== Stormclock ====
The wristwatch that [[Dalinar]] receives from [[Navani]] includes a [[stormclock]], which might be a fabrial, although it might as well operate purely mechanically. The vambrace is also equipped with a clock and a diminisher painrial, while Navani's own version has a switch that allows it to turn into an augmenter, for self-defense.{{book ref|sa3|16}}{{book ref|sa3|117}}
== Trivia ==
* Fabrials originated in the uncompleted book ''[[Mythwalker]]''.{{wob ref|16115}}
* It is possible to create an analog computer using fabrials.{{wob ref|12568}}
* The term "fabrial" will, eventually, come to be used for all magic-based mechanical devices in the [[cosmere]], such as the mechanism that picks [[Elantrian]]s.{{wob ref|8621}}
{{Stormlight}}
[[Category: Fabrials| ]]
[[es:Fabrial]]
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