The physical world has many omnipresent forces acting on it, but how often are we actually aware of these forces and how they affect us?
Forces Unseen is a collection of images (original and appropriated) related to, or inspired by, the forces that act upon us all the time, but as they are unseen their existence is easily forgotten (if we were ever aware of them in the first place).
While some images directly refer to the force, some reference the model or experiment used to demonstrate, or refute, the nature/method of action of the force.