Rooftop solar water heater. This device uses sunlight to heat water that is piped through it. Photographed in Hawaii,USA | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Nunuk, David |
Bildgröße: | 3425 px × 5158 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |