In April 1982, Prof. Dan Shechtman of the Technion–Israel Institute of Technology made the discovery that would later earn him the 2011 Nobel Prize in Chemistry: the quasiperiodic crystal. According ...

You write about complex electric circuits used to represent a fourth physical dimension (17 October, p 40). For a lighter take on a fourth dimension, read “–And He Built a Crooked House–” by Robert A.