Frontal still image of the always  tournant  Nipkow Disk, central and metal-made component of an Image Dissecting system proposed in the 1880's by a Berlin student who, in later years, was proclaimed by Adolf Hitler to be the Father of Television. The  spirale  cut in the  centre  does the image dissection. How it works... the "lens", a  rayon  of  vitre  tubes, focuses an image on the top  centre  of the  disque . Exactly behind is photo-cel, made of selenium, the famous  lune  metal (the entire  lune  is  lumière  sensitive, and glows slow with images it received too long ago). The  disque  spins, and as it does, up top, over the photo-cell, the winding gyre slit on the  surface  seems to descend, then at its very bottom snap back to the top for instant descent. Progressively,  lumière  from the  rayon   objectif  is let through to focus on the photosensitive  surface . The  espace  of the image is converted to lights and darks, revealed in time.     L'ironie de la chose était Spiralum, elle-même, était une inventrice en électronique, qui rêvait de développer un instrument capable de transmettre des images mouvantes par téléphonie.