Drinking Bird

The drinking bird, often seen bobbing cheerfully at desks and labs, is a fascinating example of a heat engine in action. Known scientifically as the “drinking bird,” this toy manipulates temperature differences to create perpetual motion, captivating viewers of all ages. At its core, the drinking bird consists of a glass tube shaped like a bird that pivots on a central axis. As the bird's beak dips into water, its body absorbs heat from the su...