Self-Stirring Pot Puts Japanese in a Spin
A watched pot never boils, but some pots can stir themselves.
Kurukuru Nabe, a pot developed in Japan, stirs its own contents, freeing you up to do better things with your time.
You'd think this is high-tech stuff, but no. It's a conventional saucepan with a grooved insert that produces a circular motion resembling a whirlpool in the water.
The design is fairly simple, as seen in this video of an aluminum pot with grooves that induce a spin.
When the water in Kurukuru Nabe gets hot enough, things start to spin counterclockwise.