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 best way to recognize an approaching windshift during the closing minutes of a prestart is to observe other boats upwind on the course, but if you’re the only class on the racecourse, or the first ...

Sailing upwind seems impossible, yet it shaped exploration, trade, and naval power for centuries. This breaks down the physics of lift, hull resistance, keels, and tacking to show how sailors learned ...