RichardB Posted August 1, 2014 Share Posted August 1, 2014 July 14th 1788 Carver Street, Sheffield. Eyes not quite up to reading the thing obviously ... Cooper Link to comment Share on other sites More sharing options...
Bayleaf Posted August 1, 2014 Share Posted August 1, 2014 Basically a speedometer for ships. Simple idea but takes no account of currents! Based on a waterwheel, he must have been watching one of the many wheels in Sheffield when he had his Eureka moment! Link to comment Share on other sites More sharing options...
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