Prof. Ruiz (Doc) AKA doctorphys, Professor Emeritus, University of North Carolina at Asheville (UNCA), Asheville, North Carolina, USA.  I am retired after spending my entire professional career teaching 43 academic years at UNCA (1978-2021). I now make available video lectures and notes with a Creative Commons License Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).

Video Lectures are on YouTube: youtube.com/doctorphys

Lecture Notes at doctorphys.com

  • originally from Camden, New Jersey, USA
  • Ph.D. in Theoretical Physics from the University of Maryland
  • studied classical piano with Stewart Gordon
  • studied jazz piano with Ron Elliston
  • 3 piano concertos performed, Winston-Salem Symphony
  • featured on CNN, e-textbooks in physics and astronomy
  • 1st to win all three major UNC Asheville teaching awards
  • UNC Asheville Feldman Research & Service Award
  • UNC Asheville Research Award for Most Productive Five-Year Period

Physics Genealogy



1955-1956, Kindergarten: Yorkship School, Camden, New Jersey, USA

1956-1964, Elementary School, St. Joan of Arc, Camden, New Jersey, USA

1964-1968, High School: Bishop Eustace Prep, Valedictorian, Class of 1968. Photo Courtesy Bishop Eustace.

1968-1972, St. Joseph’s (Phila.), B.S., Physics, Magna cum Laude, Honors Program. Photo Courtesy Aimée Knight, License.

1972-1975, University of Maryland, M.S., Physics

1975-1978, University of Maryland, Ph.D., Theoretical Physics

1978-2021, UNC Asheville, Professor of Physics (Chair, 1980-2000)