About the Author

Wiebe E. Bijker is Professor at Maastricht University and the author of Of Bicycles, Bakelites, and Bulbs: Toward a Theory of Sociotechnical Change (MIT Press) and other books. Thomas P. Hughes is Professor of the History and Sociology of Science at the University of Pennsylvania. Trevor Pinch is Goldwin Smith Professor of Science and Technology Studies at Cornell University and coeditor of The Social Construction of Technological Systems: New Directions in the Sociology and History of Technology (anniversary edition, MIT Press). Trevor Pinch is Goldwin Smith Professor of Science and Technology Studies at Cornell University and coeditor of The Social Construction of Technological Systems: New Directions in the Sociology and History of Technology (anniversary edition, MIT Press). Wiebe E. Bijker is Professor at Maastricht University and the author of Of Bicycles, Bakelites, and Bulbs: Toward a Theory of Sociotechnical Change (MIT Press) and other books. Thomas P. Hughes is Professor of the History and Sociology of Science at the University of Pennsylvania. Michel Callon, developer (with Bruno Latour and others) of Actor Network Theory, is Professor at the É cole des mines de Paris and a Researcher at the Centre de Sociologie de l'innovation there. John Law is Professor in Sociology at the University of Keele, Staffordshire, England.