Friction

Friction is a force opposing motion when two surfaces slide or tend to slide against each other (e.g., rubbing hands, a sliding box) upon contact..

In Cartesian Physics, this is from the void-flow between aetherspace.

Material Superphysics, on the other hand, defines friction as the reduced volume of space particles (qosts) that flow between bodies.

This is because space particles flow around a body at all times as a result of the 2nd Rule of Motion.

A lack of flow causes the aetherspace particles to resist each other since, the job of the aetherspace is to separate identities.

This is different from normal force which does not expect a void-flow because it really depends on the 1st Rule of Motion.

Since friction is based on the lack of space particles then it is observable in the Radiant and Material Layers:

Note that Reverse Gravity is not classified as an effect of friction because friction implies the movement of surfaces, as opposed to being static after being set.

In the Material Layer, friction is revealed by the coefficient of friction u as:

u  F/N

Where:

• N is the normal force
• F is the frictional force, as the normal force reduced