Employment History

1957-1961:Summers

Student Trainee and Research Associate; Oak Ridge Laboratory, Oak Ridge, Tennessee

1962-Summer

Physicist; Autonetics Division of North American Aviation Co., Anaheim, California

1962-1964

Teaching Assistant; Philosophy Department, Stanford University

1964-1966

Assistant Professor of Philosophy; University of Michigan; Ann Arbor, Michigan

1966-1968

Assistant Professor of Philosophy; Stanford University

1968-1973

Associate Professor of Philosophy; Stanford University

1969-Spring

Visiting Professor in Theoretical Philosophy; Uppsala University, Uppsala, Sweden

1973-1974

Policy Analyst; Stanford Research Institute, Menlo Park, California

1974-1975

Visiting Professor of Philosophy; University of Munich, Munich, Germany

1976-Winter

Visiting Professor of Philosophy; Heidelberg University; Heidelberg, Germany

1976-1977

Visiting Professor of Philosophy; University of California at Santa Cruz

1977-Spring

Visiting Professor of Philosophy; Virginia State University

1977-1978

Lector for Philosophy of the Natural Sciences; Technical University of Eindhoven, Netherlands

1978-1980

Professor of Philosophy; The State University of New York at Albany

1979-Fall

Visiting Professor of Philosophy; State University of Campinas, Campinas, Sao Paulo, Brazil

1980-Present

Professor of Liberal Arts and International Studies; Colorado School of Mines, Golden, CO

1981-Present

Adjoint Professor of Philosophy; University of Colorado, Boulder, CO

1985-Spring

Visiting Professor of Philosophy; University of Bielefeld, Bielefeld, Germany

1987-1988

Visiting Professor of Philosophy; University of Munich, Munich, Germany

1992-Spring

Visiting Professor of Philosophy; Institute for Philosophical Studies, National Autonomous University of Mexico, Mexico City, Mexico