Lightning. Time exposure image of lightning bolts striking a city during a thunderstorm at evening. Lightning occurs when a large electrical charge builds up in a cloud. This is probably due to the rapid movement of water droplets and ice particles within the cloud. The charge induces an opposite charge on the ground,and a few "leader electrons" travel to the ground. When one electron contacts the ground,there is a huge backflow of energy up the path of the electron. This produces a bright flash of light,and temperatures of up to 30,000 degrees Celsius. Photographed in Tucson,Arizona,USA | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wood, Kent |
Taille de l’image : | 5202 px × 3445 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
|