If you search the outer reaches of the internet you will find all sorts of web sites and videos purporting to answer to free energy in the form of perpetual motion machines and other fantastical ...

Humans have been sailing various seas and oceans for thousands of years, and using boats for potentially even longer than that. But as a species we wouldn’t have made it very far if it was only ...

The electric solar wind sail is a propulsion system that uses the solar wind proton flow as a source of momentum for spacecraft thrust. The momentum of the solar wind is transferred to the spacecraft ...

Cruise editor Tom Stieghorst is in Bali for a Star Clippers cruise near the Indonesian island. His fourth dispatch follows. A good part of the appeal of Star Clippers Cruises is that its ships are at ...

Norsepower and Kongsberg Maritime paper intends to serve as a foundation for further industry dialogue on the future of wind-assisted propulsion.