Professor Kosta D. Maglić, an internationally distinguished researcher in the field of thermophysical properties, passed away on April 16, 2018, in Belgrade, Serbia. He is mourned by his wife Gordana, magister of technology, by his son Rastko, doctor of gynaecology and obstetrics, and by three grandchildren, along with the entire thermophysics and temperature communities. Professor Kosta Maglić was born on June 6, 1934 in Zagreb, from mother Vera and father Dimitrije, pre-WW2 engineer of the Technical University of Prague. He graduated first from the Third Male High School in Belgrade and next, in 1960, from the Faculty of Mechanical Engineering in Belgrade. His research interest was shown as early as in the final years of the faculty when he performed, under the leadership of Professor Trbojević, complex friction testing on various metals and alloys. In 1959, he wrote his first article, which was later rated as the best student work of that year.