I am presently attending a conference at the marvelous British museum, 3D Imaging in Cultural Heritage. Tomorrow, I will give a talk on the various ways in which we have digitised and 3D scanned Christopher Polhems mechanical alphabet – with a particular focus on movement and friction. Essentially, my point is that a 3D model can be moved around – but you cannot move its parts. In an animation, on the other hand, all parts move – but you cannot steer movement yourself. In virtual reality you can do both – but at the expense of transporting yourself to nowhere. My slides can be downloaded here: snickars_presentation_london_2017.