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The product of a Japanese start-up called Challenergy, technology called the Magnus Vertical Axis Wind Turbine (VAWT) could make use of those damaging winds. Instead of the traditional propellers found on regular wind turbines, Magnus VAWT has a rotating cylinders that power a vertical-axis generator. It relies on the ‘Magnus effect’, a phenomenon that explains why air curves when passing by a spinning object. A Magnus VAWT turbine consequently has three vertical cylinders that rotate around a vertical axis to generate power. It’s already been tested in Nanjo City in Okinawa, Japan, where it withstood wind speeds of 225kph/140mph.Although they’re don’t appear to be as efficient as regular wind turbines, if Magnus VAWT turbines can capture even some of the kinetic energy from a typhoon, that won’t matter.
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