A very pleasant dinner during the visit of Prof. Ruben Juanes, Department of Civil and Environmental Engineering, MIT.  (From left: Prof. Holger Class (Uni Stuttgart), Prof. Ruben Juanes (MIT), Prof. Andreas Yiotis (TUC), Prof. Bo Guo (Uni Arizona), Prof. Holger Steeb (Uni Stuttgart), Prof. Christian Rohde (Uni Stuttgart).