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 ...

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 ...

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 ...

In one race of the Spring Soling Bowl off Annapolis in a dying northwesterly, we led up the second beat until nipped at the mark by Manfred Kantor, of Canada, who had come in from the right corner.

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 ...