Nothing fancy, but my drawing gadget (a livescribe pen), came today, so i got it out to do what it does.
It shows a cube, being pumped up. The faces move outward, and new faces are formed by the 'rubber lining'. From this, in 1977, did i glark that this happened everywhere, giving rise to the 'prism-circuit', and later 'runcinated'.
I usually hold that runcinated and cantellated ought be swapped, because this would aline 'runcinate' rr with rectified rectate r.r, rather than making the rectified rectate connect to the cantellate.