Sailing is nerdier than you think. You rarely have the wind at your back. The sails act as airfoils as the wind passes over them at certain angles. As the sail opens, lift is created. That lift drags ...

As the new watch captain emerges on deck, his counterpart begins his hand-off with a report on the competition, “We’ve dropped them back 5 degrees in the last hour, plus the range has doubled, so ...