Valentim Maria Brunheta Nunes, Associate Professor and Head of the Degree Program in Chemical Technology, at the Polytechnic University of Tomar, Portugal. BSc in Chemistry (1986), MSc in Physical Chemistry (Physical Chemistry of Materials, 1997), and PhD in Chemistry (Technological Chemistry, 2007), from the Faculty of Sciences of the University of Lisbon, under the supervision of Prof. Carlos Nieto de Castro, in high-temperature viscometry of molten salts. Main interests are thermophysical properties of fluids, new forms of energy conversion, and sustainability. He is a member of the Portuguese Chemical Society and the Portuguese Association of Physics and Chemistry Teachers.