We interviewed the core team at Norway's World Wide Wind to learn more about its floating, tilting, contra-rotating, double turbine design, which it says can unlock unprecedented scale, power and ...

Sharrow's extraordinary looped propellers were already some 30% more efficient than traditional designs – and now the company has put two of them together into a coaxial, contra-rotating prop that ...

Before sunrise in Baltimore on Friday, the Rev. Robert Turner, senior pastor of the Empowerment Temple AME Church, set out to walk 43 miles from his church to the Smithsonian’s National Museum of ...