Árpád Néda

Árpád Néda was born on 6 October 1937 in Brașov, known in Hungarian as Brassó, in Romania. He went to secondary school in Cluj, graduating in 1954 from the Brassai Sámuel Lyceum, one of the best known Hungarian-language schools in the city.

He then studied mathematics and physics at the Bolyai University, the Hungarian-language university of Cluj, and qualified as a teacher of both subjects in 1959. After a competition he was taken on as a junior assistant at the Bolyai University. In the same year the Bolyai University was merged with the Romanian-language Babeș University, and he won a second competition to become an assistant at the Faculty of Physics of the new Babeș-Bolyai University.

Néda's research was in solid state physics. He studied the thermal properties of solids, diffusion processes, the physical effects of ultrasound and nuclear magnetic resonance. In 1976 he defended his doctoral thesis on the thermal properties of magnetically ordered materials, supervised by Professor Iuliu Pop. His papers appeared in Romanian and foreign journals including Studii şi Cercetări de Fizică, Physica Status Solidi and the Journal of Magnetism and Magnetic Materials, and he wrote popular science pieces for A Hét, Korunk and the daily press.

He became a lecturer in 1977, but according to his faculty the conditions of the time delayed his promotion to associate professor for almost fifteen years, until 1991. After the fall of communism in 1989 he took on a leading role in university administration. He was scientific secretary of the Faculty of Physics from 1991 to 1994 and then vice dean until 2000. On 1 February 2000 he was elected to the university senate for the Hungarian section, and in August 2000 he was elected to a newly created post of vice rector of Babeș-Bolyai University. Working closely with the other Hungarian vice rector, Zoltán Kása, he contributed to the institutional consolidation and growth of teaching in Hungarian until his retirement in 2004.

For decades his lectures in mechanics and thermodynamics introduced first year students to university physics. Colleagues recalled the clarity with which he explained the physical meaning of the mathematics, his carefully prepared experimental demonstrations and his habit of ending a lecture with a joke. After retiring he continued to teach as a volunteer until the end of the 2016 to 2017 academic year, and he guided many senior students towards experimental research in solid state physics and thermal measurements.

He was co-author of the Fizikai kislexikon, a small physics encyclopaedia edited by László Heinrich (Kriterion, 1976), and of a Romanian collection of mechanics problems (1979). His Hungarian-language university texts included Mechanika (1978), Hőtan (1983 and 1984), Mechanika és akusztika (1987) and, with Emőd Filep, Mechanika and Hőtan (2003) and Általános fizika (2007), which remained in use at several universities. He contributed to Matematikai és Fizikai Lapok, was a founding member and long serving editorial board member of FIRKA, a science magazine for secondary school pupils, and ran refresher courses for school physics teachers.

Néda was married to Ágnes Néda (1939 to 2024), a mathematics teacher who edited and later ran the Hungarian-language mathematics magazine Matematikai Lapok, now Matlap. Their sons Zoltán Néda and Tamás Néda both became physicists; Zoltán Néda is a professor at the Babeș-Bolyai University Faculty of Physics and an external member of the Hungarian Academy of Sciences.

Sport was a lifelong part of his life. In his youth he achieved notable results in speed skating and athletics, later played tennis for decades, and kept skiing regularly in winter even after he turned 80. Colleagues remembered his moral integrity, his calm nature and the open, witty manner with which he could ease tension in difficult situations.

Árpád Néda died in Cluj-Napoca on 16 October 2026, ten days after his 89th birthday. The cause of death was not made public. The Hungarian Line Department of Physics at the Babeș-Bolyai University Faculty of Physics published an In memoriam notice on 17 October, signed by Associate Professor Ferenc Járai-Szabó, announcing his death with deep sorrow and offering condolences to his son and colleague Zoltán Néda and the rest of the family. A death notice was also published in the Cluj Hungarian daily Szabadság on 19 October 2026. Funeral arrangements had not been reported at the time of writing.

Néda is remembered as a central figure in Hungarian-language university physics teaching in Transylvania. His faculty wrote that with his death the physicists of Cluj had lost a teacher who formed generations of specialists and helped build a true school of physics, and that the faculty had lost a wise, generous colleague who was always ready to help.

His textbooks on mechanics, thermodynamics and general physics are still used as references at several universities, and his work for FIRKA, Matematikai és Fizikai Lapok and the training of school teachers reached well beyond the lecture hall. His service was recognised by Romania with the National Order of Faithful Service in the rank of Knight in 2000 and by Hungary with the Officer's Cross of the Hungarian Order of Merit in 2023.