Sphere
From Anathem Wiki
A Sphere is a flexible tool made of newmatter and one of the three personal possessions of an Avout.
Numerous properties of a Sphere can be modified, including the size (from "pill"-size to several feet in diameter) and flexibility (rigid to soft). A Sphere can also be used as a light source.
The size of a sphere is manipulated by the avout via hand motions. An open-palmed unscrewing motion on the surface of the sphere, for instance, will cause the sphere to grow.
A sphere can be used as a seat, a pillow, a light source, and to help secure a Chord on a complex, formal wrapping of a Bolt.
