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The Famous Drinking Bird

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Item Code: grzxy69900139
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Drinking Bird. A rather dumb looking 6" bird with a felt covered head and has plastic feet. Worse, he cannot get his fill of water. You buy the drinks. Fluid inside condenses from the evaporative cooling of the water off the bird's beak, making it top heavy and dunking it back into the water. The condensate rejoins the liquid pool in the bird's bulb, and he tips up again. WARNING! The fluid and dye inside the bird can permanently stain, and the bird's glass body can easily be broken. Children are fascinated by the bobbing bird, and the educational possibilities are great. But they should watch it, not fondle it!!

Do you understand the complex relationship between chemistry and physics that makes this
simple heat engine operate? Drinking Bird. A rather dumb looking 6" bird with a felt
covered head and has plastic feet. Worse, he cannot get his fill of water. You buy the
drinks. Fluid inside condenses from the evaporative cooling of the water off the bird's
beak, making it top heavy and dunking it back into the water. The condensate rejoins the
liquid pool in the bird's bulb, and he tips up again. Process continues indefinitely. It
works, but it's not any more than moderately well made, and not any more than moderately
priced. WARNING! The fluid and dye inside the bird can permanently stain, and the bird's
glass body can easily be broken. Children are fascinated by the bobbing bird, and the
educational possibilities are great. But they should watch it, not fondle it!! Drinking
Bird. A rather dumb looking 6" bird with a felt covered head and has plastic feet.
Worse, he cannot get his fill of water. You buy the drinks Almost everyone remembers
this hard to find toy with at least a twinge of nostalgia. the Drinking Bird is back,
disguised as a great demonstration of thermo dynamics. When the head of the bird is
moistened with water it will repeatedly tip over and appear to be drinking from a cup
placed in front of it The dunking is due to the evaporating water, which cools the head
reducing the pressure of the gas inside. The liquid inside the bird rises up from his
tail towards his head, causing the bird to tip and appear to be drinking. In essence
this is a small , cleverly designed thermodynamic engine which only needs water to run!