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 ...

Now that cars, planes, and ships have wreaked havoc on the environment, some companies are looking to go back to transportation basics: using the wind to sail the sea. How are ships harnessing ...

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 ...