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Education, science, in fact the whole society, extensively use images.Between us and the world are the visual displays. Screens, small and large,individual or not, are everywhere. Images are increasingly the 2D substrate ofour virtual interaction with reality. However images will never support acomplete representation of the reality. Three-dimensional representations willnot change that. Images are primarily a spatial representation of our worlddedicated to our sight. Key aspects such as energy and the associated forcesare not spatially materialized. In classical physics, interaction descriptionis based on Newton equations with trajectory and force as the dual centralconcepts. Images can in real time show all aspects of trajectories but not theassociated dynamical aspects described by forces and energies. Contrary to thereal world, the world of images opposes no constrain, nor resistance to ouractions. Only the physical quantities, that do not contain mass in theirdimension can be satisfactory represented by images. Often symbols such asarrows are introduced to visualize the force vectors.

How to display science since images have no mass