Robert Webb
There's no better way to understand 3D geometry than to hold it in
your hand. When it comes to 4D geometry, the best we can do is hold
a 3D representation of it. This video shows animations of 3 such
models coming together in their final stages, squeezing additional
artistic and aesthetic value from the lengthy process that goes into
making them. Two of these models are 3D perspective projections of
4D polytopes, while the other is a 3D cross-section of a 4D regular
polytope.