Chemiluminescent light tubes
Numéro d’image : 11997189
| Chemiluminescence. View of three different colours of "light tubes" displaying chemiluminescence. These tubes glow because a chemical reaction is taking place. At rest,the tubes contain two chemicals separated by a brittle barrier. When the tubes are shaken,the barrier breaks,and the chemicals mix and react. Like the emission of heat,emission of light is one way of releasing energy during a chemical reaction. Photons of light are produced when excited electrons inside atoms change from a high-energy orbit to a low- energy orbit. Luminescence is the emission of light for any reason other than a rise in temperature | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Winters, Charles D. |
| Taille de l’image : | 3472 px × 5079 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : |
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