Plasma sphere

Numéro d’image : 11892437
Plasma sphere
Plasma sphere. Hands touching a plasma sphere and attracting streamers of light. The metal sphere at the centre of the globe has a very high electrical voltage applied to it. This causes a large potential difference between the sphere and the glass wall. The globe contains gas at low pressure. Static discharges across the gas cause the atoms in the gas to lose their electrons,turning the gas into a plasma. When the nuclei and the electrons recombine they emit the light seen here. Touching the outside of the glass globe concentrates the static charge on the glass,intensifying the ionising field and causing the streamers of light
Licence : Droits gérés
Crédit: Science Photo Library / Lawry, Lawrence
Taille de l’image : 5159 px × 4098 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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