B.S. in Physics (First Class Honor) (1968 - 1972), Chulalongkorn Univ., Bangkok
M.A. in Astronomy (1975 - 1977), Univ. of California, Los Angeles
Ph.D. in Astronomy (1977 - 1981), Univ. of California, Los Angeles
Executive Board Member, Mind Science Study Forum, 1986 – present
President of Science Writers and Publishers Forum and Founder of the Outstanding Science Communicator Award, Science Society of Thailand, 1991
Vice President, University Professors Society of Thailand, 1992 - 1994
Broadcaster of Popular Science Programs at Chulalongkorn Radio, Education Radio and Distance Learning TV, 1992-2001
Consultative Board Member, Science Writers and Publishers Forum, Science Society of Thailand, 1992 - present
Executive Board Member, Psychical Research Society of Thailand, 1992 – present
Visiting Professor at Mahidol University, Mahachulalongkorn Royal University, Mahamakut Royal University, Thammasat University, King Prajadhipok Institute, and Mongol Vidya School at Rayong 1993 - 2017
President of Faculty Senate, Chulalongkorn University, 1996-1997, 2003 - 2004
Consultant to Minister of Education, 1998
Associate Dean for Academic Affairs, Faculty of Science, Chulalongkorn University, 1999 - 2000
Consultant to Senate Committee of Science, Technology and Energy, 2001 - 2002
Editor of "Faculty Senate Manual" and "Source of Thought III: From Past to Present", Chulalongkorn University Faculty Senate, 2007, 2010
Vice President, Society for Civil Right and Liberty
P. Pacharintanakul, “Radiative Stellar Winds,” Bulletin of the American Astronomical Society, vol. 12, pp. 801, 1980.
Halley's Comet: Bangkok 1986, Proceedings of the 8th Conference on Science and Technology in Thailand, pages 289-290, October 1982, Bangkok
Dhammic Physics, World Fellowship of Buddhists Review, volume XXII, number 3, pages 13-19, July-September 1985
Total Solar Eclipse: Thailand 1995, Proceedings of the 15th Conference on Science and Technology in Thailand, pages 94-95, October 1989, Chiengmai
A Brief Report on Teaching of Astronomy at Chulalongkorn University, Bulletin of the IAU Working Committee on Astronomical Education in the Asian-Pacific Region, number 2, 1990
Total Solar Eclipse: Thailand 1995, J. Sci. Res. Chula. Univ., volume 16, number 1, pages 49-57, 1991.
Column"Hitech Khadi" in "Mongkhonmiti" bimonthly/monthly, 17 articles, 2012 - present.