From towing kite propulsion to sails fitted with solar panels, modern engineers have been working hard to find ways to make our increasing reliance on big cargo shipping more energy efficient and ...

The twin Flettner rotor ship Buckau made its maiden voyage into Grangemouth in 1925 It must have been a bizarre sight when a freight ship, equipped with two large rotating towers, made its way under ...

It must have been a bizarre sight when a freight ship, equipped with two large rotating towers, made its way under the Forth Bridge a century ago. The experimental sail technology, on the rotor ship ...