For most sculptors, a stable work of art is something of a priority. Not so for kinetic artist and designer Ralfonso. The Swiss sculptor, whose work can be found in countries all over the world, gives ...

In an online lecture, a professor mentioned that Einstein could draw or imagine a 4-dimensional figure. How can one possibly do that? originally appeared on Quora: the knowledge sharing network where ...

How to ‘See’ the 4th Dimension with Topology Mathematician Maggie Miller explores the strange and fascinating world of 4D topology — the study of shapes, or manifolds, that resemble flat Euclidean ...