A compass is segmented or made up of degrees. 360 degrees makes a full circle and can be also measured with a protractor. So clearly a vector has direction and magnitude. We choose for this discussion to consider vector and magnitude as 2 separate part of the same whole. Simply put magnitude is the how much of something.
Vector is the direction of something.
Let us discuss resistance today as well, as it relates to the physics of the neuro-spine. The aberrated support system of the vertebral motor unit. The support system is made up of supportive soft tissues known as muscles, tendons, ligaments, and inter-vertebral discs. The intelligent driving force behind this support system is the human brain stem's reticular system which controls all of the body's systems. The bi-product of vertebral articulation wear and tear or frank trauma is the fibrosis of repair.