The telluric wave conductor shown here has been modified to conduct the full spectrum of command waves--whatever those may be. We do not even know what "telluric waves" are yet. This particular specimen, located in Paris, is hooked to a stolen piece of the powering intellect of Castle Heterodyne and used to covertly take over every mechanical thinking engine in Paris.
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There is an Italian novel that was translated into English entitled Focault's Pendulum. There is even a long escape through the underground sewers of Paris. It is suggested in the novel that the Eiffel Tower is a structure specifically designed to take advantage of telluric currents--which really do exist. Batteries have been made to take advantage of telluric currents.