What a great week at Queen's University. The department was kind enough to let me use a faculty office whose occupant was away. That person was clearly a condensed matter/solid state expert. I was surrounded by the subject in books and charts. I kept having flashbacks to my C in solid state physics in college. Nevertheless, lessons from that class stuck around longer than those in classes where I excelled. https://chirp.cooleysekula.net/attachment/a549713db63140873287a87e80212fc50686de9b4156605a1d47098cd5a94bcd/view