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 ...

An electric solar wind sail is a recently introduced propellantless space propulsion method whose technical development has also started. The electric sail consists of a set of long, thin, ...

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 ...

When thinking of humanity’s ability to harness wind energy, many people will conjure images of windmills from places like The Netherlands or Persia. But people have been using wind energy ...

George Aggidis does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

NASA is gearing up to launch an advanced solar sail spacecraft later this month. Using a new boom made of lightweight polymer composites, the Advanced Composite Solar Sail System is scheduled to lift ...

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 ...

STORY: Notice anything different about this carrier ship? It’s been fitted with two special sails called WindWings which study how harnessing wind power can cut emissions and energy usage in the ...