An iron rod is heated with a torch. The iron in the metal changes colour from red to white as the temperature rises,in a process called thermionic emission of light. The colour of the light given off by the top metal is called the colour temperature. Image 1 in a series of 3 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Kinsman, Ted |
Bildgröße: | 5616 px × 3744 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
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