What happens when you combine a stand up paddle board with a bike and a trailer? You get “the world’s first amphibious Pedal Paddle recumbent bike boat”. Meet the Duckleberry Finn. Ben Kilner ...
This is an illustrative example of a paddle boat using three interacting rotating magnets (red arrows) as a drive. Two magnets are connected to the paddles and one to the driver. If the driver magnet ...
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