A physicist.[ref]
https://www.nobelprize.org/prizes/physics/1956/bardeen/biographical/?NMW_TRANS=ext. Independent professional profile
Portrait of John Bardeen
. Source. - Electron-Phonon Interactions and Superconductivity by John Bardeen
- Semiconductor research leading to the point contact transistor by John Bardeen
- Theory of Superconductivity by John Bardeen and others
- The Transistor, A Semi-Conductor Triode by John Bardeen and Walter Houser Brattain
- Walter Houser Brattain by John Bardeen
Articles by others on the same topic
John Bardeen was an American physicist and electrical engineer, best known for his foundational contributions to the field of semiconductor physics and for co-inventing the transistor, a key component in modern electronic devices. He was born on May 23, 1908, and passed away on January 30, 1997.
The Story of John Bardeen at the University of Illinois (2010)
Source. - youtu.be/OyV8qSwGUHU?t=976 of when Bardeen demoed the transistor in class is particularly memorable
- youtu.be/OyV8qSwGUHU?t=1105 some of his golf colleagues didn't know he had won a Nobel Prize!