Neutrons: Connecting islands of physics


  • Roger Freedman Department of Physics, University of California, Santa Barbara


Although nine decades have elapsed since the discovery of the neutron in 1932, much about this particle remains unknown and the subject of intensive research. Because the neutron is ubiquitous in the universe (and in our bodies, where neutrons make up 45% of our body weight), its properties connect many different "islands" of physics knowledge.

About the Speaker

Roger Freedman, Department of Physics, University of California, Santa Barbara

Roger Freedman is the co-author of several best-selling textbooks, including University Physics (Pearson), College Physics (Macmillan), Universe (W. H. Freeman), and Investigating Astronomy (W. H. Freeman). Prof. Freedman is a teaching professor in physics at the University of California, Santa Barbara (UCSB). He was an undergraduate at the University of California campuses in San Diego and Los Angeles, and did his doctoral research in theoretical nuclear physics at Stanford University.
He holds a commercial pilot's license and is academic advisor to UCSB Rowing. He was an early organizer of the San Diego Comic-Con, now the world’s largest popular culture convention, and today is a member of the board of directors of San Diego Comic Fest, an annual convention that recaptures the spirit of Comic-Con in its early years. He has appeared as a mad scientist and supervillain in both Marvel and DC comics.

Roger Freedman



Article ID



Keynote Address



How to Cite

R Freedman, Neutrons: Connecting islands of physics, Proceedings of the Samahang Pisika ng Pilipinas 41, SPP-2023-KA-01 (2023). URL: