On 9.12.2016, (after several years of research and work) I successfully defended my dissertation “Tabletop Interaction Beyond Touch – Interaction On, Above, Around, and Across Surfaces” :-)
The doctoral hat was waaaay to big (as you may have seen if you already have had a glimpse on the facebook post). However, it was equipped with quite a lot electronics (“under the hat”) and “interesting” functions and they still work… ;-)