The folks at our favorite chemistry department continue to distinguish themselves. In the latest installment of the Periodic Table of Videos series, Prof. Poliakoff celebrates his birthday by going to the University of Nottingham’s nanotechnology center and having a periodic table etched onto one of his signature silvery hairs. At fewer than 90 microns across, the finished table may be the smallest in the world�and it’s certainly the smallest in Nottingham.