A 3D shape with all straight edges and flat faces is a polyhedron. Other 3D shapes with least one curved surface are not polyhedra. A 3D shape with regular polygonal faces, meeting at equal angles ...

Certain advanced technologies, such as 3D displays, biosensing, and security printing, can utilize circularly polarized ...

This is because the Tao-Line is not a continuous cylinder, but rather is made up of numerous circular shapes ... modeling complex shapes as a physical product- not just a 3D model on the screen ...