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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.
English: Bill reveals the operation and engineering design underlying the famous drinking bird toy. In this video he explores the role played by the water the bird "drinks," shows what is under the bird's hat and demonstrates that it can operate using heat from a light bulb or by "drinking" whiskey.
The retro “drinking bird” is making a surprising comeback — as the inspiration for a clean-energy generator ... “It was then that the idea of utilizing the drinking bird toy came to mind
The oscillating types by the Iske Brothers and Landis are related to the drinking bird toy. The drinking bird is dating back to 1910s~1930s. The drinking bird was patented in the US in 1945 [ 8 ] and 1946 [ 9 ] by two different inventors.
English: The drinking bird is a heat engine that exploits a temperature differential to convert heat energy to a pressure differential within the device, and perform mechanical work. Licensing Public domain Public domain false false
4. Make or Buy Them a 'Bird Playground' Even with big cages full of toys and perches, pet birds need plenty of daily outside cage time to stretch their wings and get some exercise and enrichment.