Mercury-vapour lamp,coloured X-ray. The yellow tube at centre contains mercury vapour at low pressure. When an electric current is applied,electrons in the mercury atoms are excited. As the electrons fall back to a lower energy state they emit light | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Radiant Art Studios |
Taille de l’image : | 4252 px × 5259 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |