Nick was about to make a major change in his life, as he moved to the University of Wisconsin-Madison in the US in the early 1980s to continue his work in nuclear fusion.
He remained at the university’s Department of Computer and Electrical Engineering for four decades. Nick became a full professor in 1994, and was department chair from 1999 to 2002. He was the author of more than 100 articles and three books in his specialist field.