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Drinking bird
Novelty toy powered by temperature difference caused by evaporating water. / From Wikipedia, the free encyclopedia
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Drinking birds, also known as dunking birds, drinky birds, water birds, or dipping birds[1][2][3] are toy heat engines that mimic the motions of a bird drinking from a water source. They are sometimes incorrectly considered examples of a perpetual motion device.[4]
Quick Facts Classification, Application ...
Drinking bird | |
---|---|
![]() Drinking bird about to dip its beak in the water | |
Classification | Heat engines |
Application | Toy, scientific demonstration |
Fuel source | Heat transfer |
Components | Bulbs, tube, axle, support |
Inventor | Miles V. Sullivan / Chinese craftspeople |
Invented | 1945 / much earlier than 1920 |
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