Diagram of a motor-driven  mécanique   télévision  of the 1920's. It is the Nipkow  disque , that wheel with the circular  spirale  cut though it, which is used by this  machine  to dissect images for  transmission . Note how in total it accidentally looks like the axle and wheels of a railroad  voiture . Nipkow worked for the Berlin railroad company in the 1880's, helping design a semaphore signal system for navigation through the growing urban track maze.  Ella  is aware of this and other coincidences.     Elle combinait la technique de cinématographie ectoplamique de son frère avec sa connaissance de la téléphonie électrique. Elle appela sa machine le Télescope Electrique.