Daniel HeadrickDaniel R. Headrick, Ph.D., received his doctorate in history from Princeton University. Professor emeritus of history and social science at Roosevelt University in Chicago, he is the author of several books on the history of technology, imperialism ad international relations, including The Tools of Empire: Technology and European Imperialism in the Nineteenth Century; The Tentacles of Progress: Technology Transfer in the Age of Imperialism; The Invisible Weapon: Telecommunications and International Politics; Technology: A World History; Power Over Peoples: Technology, Environments and Western Imperialism, 1400 to the Present; and When Information Came of Age: Technologies of Knowledge in the Age of Reason and Revolution, 1700�1850. His articles have appeared in the Journal of World History and the Journal of Modern History, and he has been awarded fellowships by the National Endowment for the Humanities, the John Simon Guggenheim Memorial Foundation, and the Alfred P. Sloan Foundation. Read More Read Less