Navani's notebook
Navani's notebook is a series of pages found in Template:Bref, which was translated from Alethi into English.
Page one
The cut and type of the gem determines what kind of spren are attracted to it and can be imprisoned in it. There must be thousands of possible combinations. Once a spren is captured and the gem infused with Stormlight the fabrial can be used in machines.
Pain Knife The pain knife is used as a means of protection. Sharp blades pierce an attacker’s clothing and cause crippling pain.
cold gravity pain heat wind (These are labels describing which spren are attracted to different gem cuts.)
Flamespren trapped in emerald
Removable outer covering to infuse fabrial with Stormlight
Fabrial
Retractable blades cause crippling pain. Dial pushes blades to four set lengths.
Page two
Examples of stormlight patterns
Patterns of stormlight filtered through the fabrial determine the power of the gem
Fabrials allow creation of things like the emotion bracelet made of ten fabrials working together
The pattern cannot be seen by the naked eye
Man betrayed by a close friend Woman who has just been proposed to Man who discovered his betrothed lies to him Mother at wedding of only son
Anticipation anger disgust sadness
love hate
joy trust fear surprise
The trick of the emotion fabrials is first learning to read it and second learning to tell if the bracelet is reading your emotions, your subject's emotions, or the emotions of the people in the next room over
Notes
Note that in this notebook, Navani refers to a single gem with captured spren as "fabrial", while a combination of one or several gems and setting is referred to as a "machine". In colloquial use, "fabrial" often refers to a complete product.