Green gym. Workers generating electricity using stationary exercise bikes in a gym at a homeless shelter. These bikes generate electricity when they are used buy residents,staff and volunteers,which is then put back into the power grid. Photographed in Detroit,Michigan,USA | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / West, Jim |
Bildgröße: | 5125 px × 3417 px |
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Eigentums-Rechte: | nicht erforderlich |
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