ABSTRACT

For the physics com m unity the celebrations commemorated an im por­ tant episode the history of their discipline. For not only did Thom son and his colleagues represent the first generation of professional physicists, their work on X-rays, radioactivity, and the electron led to remarkable breakthroughs in understanding the internal working o f atoms. In turn understanding the atom provided a new basis for research in many areas o f physics. This new knowledge about the atom, quantum mechanics, and its practical outcomes, from electronic devices to nuclear weapons, changed the course o f hum an history. 2 Consequently, the celebrations marking the discovery of the electron were opportunities for physicists to draw the attention of a wide audience to the benefits (but usually not to the disbenefits), o f their work. In fact, accounts of the electron centenary reached a wide audience through mass media such as radio and television, and their newer electronic incarnations, whose operation depends on manipulating electrons.