Dr. Tom J. Ypsilantis, a world renowned Physicist, died in Geneva, Switzerland, on August 15, 2000.

He was born in Salt Lake City, June 24, 1928 to John A. Ypsilantis and Eugenia Jerefos Ypsilantis. His father was killed by lightning in 1931 and his mother died in 1981. He graduated from South High School in 1945, attended the University of Utah graduating in 1949. He then attended the University of California at Berkeley and received his Doctorate Degree in Nuclear Physics in 1955. He was one of a four man team who provided the key for the isolation of the Anti-Proton. The two Senior members of this team won the Nobel Prize in Physics in 1959. Tom was Associate Professor of Physics at the University of California, Berkeley, and in 1969, he went to Geneva to do research work at CERN (Centre European Research Nucleaire). He was the Senior Research Director in Geneva and the Consultant to the French Nuclear Agency in Sauclay, France. He was instrumental in the founding of the Demokritos Research Center in Athens, Greece and was also Project Director of CERN Research team in Bologna, Italy. He was foremost expert on Cerenkov radiation effects and he lectured throughout the world on this subject. He had many more accomplishments too numerous to mention. Tom's sister Mary received a call from an eminent Physicist who proclaimed Tom as being the "Greatest Greek Scientist since Democritus."

He is survived by his sister, Mary Y. Souvall and her husband Peter, Salt Lake City; brother, John J. Ypsilantis, Santa Clara, CA; niece, Jeannie Souvall Paxten and her husband, Keath

and their children, Kristina, Michael and Keri, Atlanta Georgia; nephews, William P. Souvall and his wife, Kim; and their children, Jennifer, Nicole, Lisa and Peter;

and Thomas P. Souvall and his wife, Debra and their children, Tracy and Alex, all of Salt Lake City.

At the request of his fellow scientists and colleagues, Memorial Services were held in Geneva, Swtizerland

August 22, 2000.