New Sacramento State History and Philosophy of Science Program
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CPNS Announces New History and Philosophy of Science (HPS) Program

Starting fall 2014, Sacramento State's HPS Program includes new course offerings in the Department of History, a visiting speaker from NASA, graduate student liaisons at Stanford and San Francisco State, the Ultimate Questions Student Discussion Group, and more.

"Sac State Initiative Combines Science, History and Philosophy"

  • Sacramento State News Article

"Program Cultivates Critical Thinking"

  • State Hornet News Article
New Books by CPNS Research Fellows

Foundations of Relational Realism: A Topological Approach to Quantum Mechanics and the Philosophy of Nature - Michael Epperson and Elias Zafiris (Rowman & Littlefield, 2014)

In this unique two-part volume, Michael Epperson and Elias Zafiris chart out a novel, intuitive, event-ontological interpretation of quantum mechanics formalized via the mathematics of category theory and algebraic topology.

"Recommended reading for graduate students and researchers." CHOICE (March 2014)


Differential Sheaves and Connections: A Natural Approach to Physical Geometry - Elias Zafiris and Anastasios Mallios (World Scientific, 2015)

This unique book provides a self-contained conceptual and technical introduction to the theory of differential sheaves. This serves both the newcomer and the experienced researcher in undertaking a background-independent, natural and relational approach to "physical geometry". In this manner, this book is situated at the crossroads between the foundations of mathematical analysis with a view toward differential geometry and the foundations of theoretical physics with a view toward quantum mechanics and quantum gravity.


Physics and Speculative Philosophy: Potentiality in Modern Science - Tim Eastman, Michael Epperson, David Ray Griffin, Eds. (De Gruyter, 2016)

Through both an historical and philosophical analysis of the concept of possibility, we show how including both potentiality and actuality as part of the real is both compatible with experience and contributes to solving key problems of fundamental process and emergence. Contribtors include Michael Epperson, Stuart Kauffman, Elias Zafiris, George Shields, Karim Bschir, Reginald Cahill, David Ray Griffin.


Campus Events

For a complete list of national and international CPNS events, click here.
November 19, 2014  

Lecture: CSUS History and Philosophy of Science Program
Visiting Scholar - Dr. Robert Geyer, University of Lancaster: "Using Complexity to Help Understand and Manage Public Policy" (POSTER) (POWERPOINT)

Co-sponsored by the CSUS Department of Public Policy and Administration

California State University, Sacramento
5:30 - 7:30 pm Petris Room, University Library (3rd Floor, Room 3023)

DOWNLOAD FREE PARKING PERMIT - Print and place on dashboard.

November 5, 2014  

Public Lecture: CSUS History and Philosophy of Science Program
Visiting Scholar - Dr. Timothy Eastman, NASA Goddard
"Cosmic Agnosticism: Current Problems and Alternative Perspectives in Cosmology" (POSTER) (POWERPOINT)

California State University, Sacramento
7:00 - 8:30 pm, Petris Room, University Library (3rd Floor, Room 3023)
This talk is intended for a general audience and is open to the public.


November 6, 2014  

Presentation: CSUS History and Philosophy of Science Program
Visiting Scholar - Dr. Timothy Eastman, NASA Goddard
"The Plasma Universe: Gravity Plus Electromagnetism" (POSTER) (POWERPOINT)

Department of Physics Colloquium
California State University, Sacramento
4:00 - 5:20, Mendocino Hall 1015

April 5-6, 2014  

Presentation: Michael Epperson, “Potentiality and Contextuality in Quantum Mechanics"

"Quantity/Quality: The Problem of Measure in Philosophy and Science"

U.C. Davis
Davis, California

March 7, 2013  

Lecture: “Between Teleology and Mechanism: The History of the Concept of Organism from a Philosophical Perspective”

Spyridon Koutroufinis

Technical University of Berlin
Visiting Professor
Department of Anthropology
U.C. Berkeley

California State University, Sacramento
1:30 - 2:45, Summit Room, University Union, 3rd Floor
Co-sponsored by the Department of History

December 6, 2012  

Lecture: Michael Epperson: “The Mutual Implication of Objects and Relations in Quantum Mechanics: How Potentiality and Contextuality are Ontologically Significant in Modern Physics”

California State University, Chico
Department of Philosophy

October 25, 2012  

Seminar: Elias Zafiris, University of Athens, Institute of Mathematics: “A Sheaf Theoretic Framework for the Representation of Quantum Event Structures in Terms of Boolean Covering Systems”

CPNS and the Departments of Mathematics and Philosophy
California State University, Sacramento

3:00-3:50, Brighton Hall, Rm. 204

October 24, 2012  

Lecture: Michael Epperson and Elias Zafiris: “Understanding Quantum Mechanics: The Rehabilitation of Aristotle in Modern Physics”

Co-sponsored by the Hellenic Studies Program and
The Hellenic American Professional Society
California State University, Sacramento

7:00-8:00 pm, Petris Room, Tsakopoulos Hellenic Collection, University Library 3023 (3rd floor)

October 23, 2012  

Lecture: Karim Bschir, Swiss Federal Institute of Technology: “Potentiality in Natural Philosophy”

Center for Philosophy and the Natural Sciences
California State University, Sacramento

1:30-2:45, University Union, Folsom Room (3rd Floor)

February 23, 2010  

STEM Lecture Series
Center for STEM Excellence (Science, Technology, Engineering, and Mathematics)

Lecture by Michael Epperson
"From Classical Philosophy to Quantum Mechanics: An Evolving Reality"

California State University, Sacramento
University Union, Redwood Room: 6 pm

For a complete list of national and international CPNS events, click here.



Foundations of Relational Realism: A Topological Approach to Quantum Mechanics

Project Phase 3 (2013-14):

Experimental Application of the Relational Realist Formalism: A Topological, Sheaf-Theoretic Explication of Quantum Geometric Phases By Analysis of Experimental Data on the Aharonov-Bohm Effect, the Pancharatnam Phase, and the Quantum Hall Effect, Toward a Unified Interpretation

Michael Epperson, Research Professor, Philosophy of Science, College of Natural Sciences and Mathematics, California State University, Sacramento; Elias Zafiris, Senior Research Fellow in Theoretical and Mathematical Physics, University of Athens; Karim Bschir, Research Fellow in Philosophy of Science, Swiss Federal Institute of Technology.


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