Close-up of the flame of a candle. A candle consists of a vertical cylinder of wax,such as tallow or paraffin wax,with a central wick of string. A flame applied to the end of the wick produces a luminous flame which melts the wax. The wick is treated with a substance such as alum so that it carbonises but does not rapidly burn out | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Lowry, Alexander |
Bildgröße: | 3151 px × 4731 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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