The counter-spatial movement is such that the vertices stay on these lines in order to obey its metric properties, as illustrated by the magenta cube, while the spatial one stays the same spatially. The geometric difference between the two cubes is referred to as strain , analogously to the use of that term in engineering where it is the percentage deformation in size when, for example, an elastic band is stretched. The elastic band responds to the strain by exerting a force, which is referred to as stress . Objects may be linked to both spaces at once, 2. When they are, strain arises when they move as the metrics are conflicting, 3.
Stress arises as a result of the strain.
Note well that stress is not a geometric concept, and we move from geometry to physics when we consider stress. The major stress-free movement or transformation is rotation about an axis through the counter space infinity,. which may explain the ubiquitous appearance and importance of rotation in most branches of physics e.g. in fluid flow.