Let’s Begin…

If you look at the wake behind a duck, or a kayak, or a ship, you might notice two things: first, it’s a feathery, rippled pattern, and second, that pattern looks the same regardless of whether it’s made by a duck, kayak, or ship— even though they’re all moving at different speeds and the waves are different sizes. How is this possible? Minutephysics digs into the Kelvin wake pattern.