Ships and Boats are going " Full Circle" in energy for propulsion. It is heartening to see the extraordinary progress in the different transport sectors despite the best efforts of self interest fossil fuel groups, individuals and politicians. The impressive clipper ships took around an hour and hard work of 20 or more men to extend sails. This can now be done extending high tech ultra efficient sails in a handful of minutes and the push of a few buttons. Digitally controlle

The World is slowing realising wind and solar are the cheapest, proven form of energy available, needing no drilling or transportation or...