Abstract
The work is an attempt to transfer a structure from Euclidean plane (pure geometrical) under the
physical observation limit (resolving power) to a physical space (observable space). The
transformation from the mathematical space to physical space passes through the observation
condition. The mathematical modelling is adopted. The project is based on two stapes: (1) Looking for
a simple mathematical model satisfies the definition of Euclidian plane; (2)That model is examined
against three observation resolution conditions (resolved, unresolved and partially resolved). The
simplest mechanical model satisfies the definition of Euclidian plane is a planetary gear. The
interesting examination of the mechanical model is that is under partial resolution. That examination
shows analogous equation for Euler’s formula. The derived complex formula contains the resolved
(observable) quantities of the mechanical system and satisfies the linear wave equation. The
interpretation of this complex formula is: it is a function related to the position vector of a point in the
small wheel of the partially resolved planetary gear system. The function is in terms of the observable
quantities only. The work shows the possibility of transformation from real to complex space. The
work is purely classical but the result of the partial resolution shows a function similar to the Quantum
mechanics wave function.