Oak leaf. Kirlian photograph of a leaf of the oak tree (Quercus sp.),showing the electromagnetic discharge around the edges. This luminous discharge is the result of high-energy interactions between the leaf and a powerful applied electric field. The oak is a large genus (around 450 species) of hardwood trees that grow in temperate regions of the northern hemisphere | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Pasieka, Alfred |
Taille de l’image : | 3867 px × 4787 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |