A Lantern Slide Model of the Wave Electron

Abstract

LECTURERS on the more popular aspects of the wave-electron may be interested in a simple lantern slide model for demonstrating the waves which I have not seen previously described. Based directly on an explanation given by de Brogue in his “Recherches sur la Théorie des Quanta” (Ann. de Physique, 3, p. 22; 1925), it has the advantage not only of showing the waves to an audience, but also of giving perhaps some insight into their nature. The model consists merely of the diagram of lines shown in Fig. 1, which can be pushed horizontally in the lantern behind a fixed vertical slit.