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Grande Dixence, visiting day on the building site 1953.
UMG24A21_340

Grande Dixence, visiting day on the building site ...

Main street,richmond, virginia, usa in 1864 ,along the james river, the city had access to hydropower to run mills and factories 1868
UMG20B28_054

Main street,richmond, virginia, usa in 1864 ,along...

A waterwheel is a hydropower system.
UMG12A06_300

A waterwheel is a hydropower system.