- Medical Lake, Washington (Wikipedia)
Medical Lake is a small city in Spokane County, eastern Washington, United States. At the 2020 census, the population was 4,874. The city is the site of a psychiatric hospital, Eastern State Hospital, and of Fairchild Air Force Base, two major employers.
- Octahedron (Wikipedia)
In geometry, an octahedron (pl.: octahedra or octahedrons) is a polyhedron with eight faces. One special case is the regular octahedron, a Platonic solid composed of eight equilateral triangles, four of which meet at each vertex. Regular octahedra occur in nature as crystal structures. Many types of irregular octahedra also exist, including both convex and non-convex shapes.