At first glance, an unremarkable toy is a real miracle that can instill a child's interest in physics and surprise parents. The drinking bird is a heat engine operating on the laws of thermodynamics. It was developed back in the 40s of the twentieth century. The toy looks like decorated containers that are connected by tubes.

Inside the flasks there is a liquid with a low boiling point. To start the mechanism, it is necessary to wet the bird's head, for example, by wetting it in a glass of water. Because of the weight difference between the vessels, the liquid constantly moves between them, causing the bird to move, mimicking the motions of drinking water. This can continue indefinitely until the water glass is empty. It can also be powered by sunlight.

Advantages of the toy

This is a great educational gift that will introduce your child to the physical fundamentals of thermodynamics.

Sturdy parts will keep the bird from breaking.

Thanks to the illustrative example, parents can give their child a fascinating lecture on thermodynamics.

Great American quality toy.