Difference between revisions of "Fabrial"

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|books=[[The Stormlight Archive]], [[Yumi and the Nightmare Painter]]
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A '''fabrial''' is a [[Light]]-powered mechanical device from [[Roshar]] that uses [[spren]] to perform a particular supernatural task. Modern fabrials typically use spren captured in gemstones, while older fabrials like Soulcasters typically have the spren manifest as metal touching (replaceable) gemstones.{{book ref|sa4|46}} The magical properties of modern fabrials can usually be activated by anyone who knows how to use them.{{book ref|sa2|86}} A person who creates or designs fabrials is called an '''artifabrian'''.{{book ref|sa4|part=ars}} The term "fabrial" is often used colloquially to refer to the entire device. Artifabrians, however, call that a "machine", and use the word fabrial to refer specifically to a gem with a captured spren.
{{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 Raysiumraysium, 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 the the amount of Stormlight infused into its fabrial-gem.{{book ref|sa4|part=ars}}
 
==== Alerters ====
 
== 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}}
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