This EG image was obtained from a pure graphite plate , cylindrically perforated, placed on the radiological negative, directly on the electrograph's glass screen; this is a magnified image.
The result of the experiment points out phenomena at the graphite-atmospheric air interface,
by means of fan-shaped semicircular luminiscences, of various sizes and densities, unevenly spread on the inside and outside contours of the cut-up graphite plate.
The square outside outline and circular inside outline of te graphite plate are marked divergently and convergently by luminiscences and linear or arborescent trajectories - ramnified archetype with equipotential aspect.
water drophome