Electric spark created when a sheet of fluorescent plastic is placed between two high voltage electrodes. Initially, the plastic builds up a charge on the surface and acts as a capacitor. At a certain potential voltage, the film, which is dielectric material, breaks down and allows electrons to flow. The flowing electrons superheat the air resulting in an electrical spark which is recorded in the film emulsion. These are often called Lichtenberg Figures, named for the German physicist Georg Christoph Lichtenberg, who originally discovered and studied them in 1777. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Kinsman, Ted |
Taille de l’image : | 4398 px × 3980 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |