👉 Biconically is a mathematical concept that refers to an object or structure that can be both thin and thick at the same time. It is characterized by its ability to change its shape from one thickness to another without breaking, thus creating a natural phenomenon known as "biconditional" behavior. The term biconically was first introduced in the 19th century by British mathematician William Rowan Hamilton. He used this concept to describe how certain materials can exist in two distinct states simultaneously