As impressive as the Americas Cup boats were a few weeks ago, I am even more impressed by Moth sailors. The people who drive these boats must be some of the smartest athletes in the world. They understand lift in two directions (up and forward) and can make it all work at speeds approaching the sound barrier.

Here’s a short video of these guys in action. Even if your knowledge of sailing is minimal, the boats will blow you away. Engineering geeks, pay close attention to how the foils work.