Difference between revisions of "Urithiru"

Urithiru displays a number of unusual properties that allow humans to survive despite its high altitude. It is believed that these systems are somehow powered by or related to the spren known as the [[Sibling]].{{epigraph ref|sa3|87}} However, at some point the Sibling withdrew from mankind andto currentlyremain slumbers.{{epigraphin ref|sa3|70}}{{bookslumber ref|sa3|111}}within Thisthe maytower, explainbut whywas manylater awakened by Raboniel. During the events of Urithiru'sRhythm systemsof areWar, currentlythe non-functional.{{wob[[Sibling]] ref|9498}}bonds with Navani Kholin, making all fabrials of the Tower operational.

Functioning fabrialFabrial systems that functioned before the awakening of the [[Sibling]] include those for increased pressure{{epigraph ref|sa3|69}} temperature,{{book ref|sa3|53}} and general conditions encouraging plant growth.{{epigraph ref|sa3|69}} Navani also theorizes that the air circulating through various shafts is powered by some sort of fabrial.{{epigraph ref|sa3|28}} In addition, the [[fabrial]] elevators connecting Urithiru's floors begin running when gemstones are inserted.{{book ref|sa3|8}} The gems in the [[Urithiru gem archive|gem archive]] which preserve recordings of human voices might also be considered fabrials.{{book ref|sa3|53}}

Non-functionalNewly functioning fabrials include the plumbing and sewage systems, though pipes for these are present.{{book ref|sa3|104}} Taravangian theorizes that fabrial lights were used to increase plant growth and crop yields to make the tower self-sustaining.{{book ref|sa3|i|5}}

In a storage chamber near the top of the tower, the walls have veins of garnet, the gemstone classically associated with blood. Due to their connection to the tower, [[Navani]], [[Kaladin]], and [[Dabbid]] were able to communicate with the [[Sibling]] and with one another through the [[Sibling]]. Navani notes that the records in the gem archive “speak of this tower like a living thing. With a heart of emerald and ruby, and now these veins of garnet.”{{book ref|sa3|109}} These areveins perhapsconnect related to the strange column of gems inat the tower's lower levels, whichwhere Renarinthe calls[[Sibling]] ahad fabrial for "being a cityslept."{{book ref|sa3|29}}