WOW! Thermodynamics & Pressure Differentials! Enjoy this classic physics demonstration in a handy bird shape. This thirsty bird perpetually bobs long as it has a glass of water to dunk in.
Great for science lessons on evaporation and condensation. Perpetual motion for perpetual fun. Great conversation starter!
First dunk the bird’s top hat and head in a glass of water. Watch the magic liquid quickly rise into his head. Then, he tips over and takes another drink, like clockwork. This favorite toy from the 1960’s is back!
Measures: 2x7 inches.
Contains: one bird, and instructions on the decorated box. (filled glass not included)