Chapter 4 of our course ‘The Fascination of Crystals and Symmetry’ is now available on YouTube.
In this chapter we will focus on symmetry operations that separate crystal structures from (other) macroscopic objects: glide planes and screw axes. After that we are ready to climb up the last step of our “ladder of crystal classification”, reaching, finally, the space groups. We will open the “crystallographers’ bible”, the International Tables for Crystallography, Volume A.
Frank and Michael