Westchester Library System - Thames
... each day or approximately 2,000 cubic feet (56.6 cubic metres) per second. ... More than 95 per cent of the river's energy is lost in turbulence and friction. ...
http://westchester.lib.overdrive.com/00000219-0000-0000-0000-000000000008/10/320/en/ContentDetails.htm?id={CFD222AB-68B7-417A-898C-193955249585}