16.1.1 Tidal Energy
lTidal mills were used in the Tenth and Eleventh Centuries in England, France, and elsewhere
lMillpond water was trapped at high tide by a gate (Difficult working hours for the miller! Why?)
uDeben estuary, Woodbridge, Suffolk, England has been operating since 1170 (reminiscent of “the old family axe”; only had three new handles and two new heads!)
uBrooklyn NY had tidal mill at Bull Creek in 1636 (details at http://watercourses.typepad.com/watercourses/water-old-mill-creekbull-creek-east-new-yorkcanarsie-brooklyn/)
uRhode Island, USA, 18th Century, 20-ton wheel 11 ft in diameter and 26 ft wide **
uSlade’s Mill in Chelsea, MA founded 1734, 100HP, operated until ~1980
uHamburg, Germany, 1880 “mill” pumped sewage
uTidal mills were common in USA north of Cape Cod, where a 3 m range exists [Redfield, 1980]
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** http://media.wiley.com/product_data/excerpt/9X/04701070/047010709X.pdf