Chi-chung Wang died peacefully in his home of natural causes on October 13, 2022 at 92 years of age.  Chi-chung was born in the midst World War II in Nanjing, China.  He joined the nationalist Navy in Taiwan and ranked Captain by the age of 23.  After retiring from the military, he immigrated to the US to obtain his PhD in Nuclear Engineering at the University of Wisconsin.  He and his wife, Theresa, then moved to Lexington, Massachusetts, where they lived for 38 years, raising their family.   Once retired, they moved down the road to Waltham.  Chi-chung is survived by his wife of 57 years, Theresa Wang, his daughters Monica and Alicia Wang, his sons in-law Ronald Homa Jr, and Justin Pistorius and his grandchildren Matthew Homa, Camille Homa, Julia Pistorius and Andrew Pistorius.