Historians of technology have provided important accounts of technological innovation, but they rarely employ concepts which permit a rigorous analysis ofinvention as a mental or cognitive process. This article seeks to address this theoretical lacuna by using concepts adapted from cognitive psychology to compare the mental processes of two telephone inventors, Alexander Graham Bell and Thomas Edison. Specifically, we suggest that invention may be seen as a process in which inventors combine ideas with objects, or what we call mental models and mechanical representations. The strategies by which inventors generate and manipulate these mental models and mechanical representations are what we refer to as heuristics. Using these concepts to narrate the development of the telephone, this article shows how invention can be interpreted as being much more than simply a mysterious act of individual genius.

This panel will report the results of a workshop and symposium on the technological literacy of undergraduates convened at the National Academy of Engineering (NAE) on March 26-27, 2007. The NAE advocates that all Americans become more knowledgeable about technology. Here technological literacy is defined as the broad understanding of all types of technological devices and process not just computers. The opportunity to utilize undergraduate education to further technological literacy of all students must not be neglected. Educators in Computer Science, Engineering and Technology have a responsibility to educate all students not just those intending technical careers. Despite the need for all Americans to become technologically literate, technical literacy is not likely to gain wide acceptance until the scholarly community develops standard courses that are supported by textbooks and other course materials. This National Science Foundation (NSF) sponsored workshop sought to identify and define several models of technological literacy courses. In this FIE panel, short presentations about these models will be made by participants in the NAE/NSF symposium. This will be followed by a discussion with the audience. A goal of the discussion will be to seek the input from FIE participants on the technological literacy course models.

This paper describes an interpretive framework for understanding the cognitive or mental processes of inventors, and applies this framework to narrating how Thomas Edison developed the kinetoscope, or motion picture. A review of recent developments in the history of technology and cognitive science suggests the need for better conceptual categories for understanding and comparing how inventors approach problems. We show how Edison created a mental model of the kinetoscope from his existing phonograph, and how his assistant William K. L. Dickson (who is often credited with inventing the kinetoscope) developed his own alternative mental model. We further discuss how Edison utilized building blocks or mechanical representations from previous inventions, and what strategies or heuristics he employed. In particular, we examine how Edison divided the project between himself and Dickson. The overall result of applying our framework to this case is to provide a clearer picture of the roles played by Edison and Dickson in this invention. The paper closes with a discussion on the potential relationship between cognitive and sociological approaches to technological innovation.

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