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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.
A hand boiler functions similar to the "drinking bird" toy: [1] The upper and lower bulbs of the device are at different temperatures, and therefore the vapor pressure in the two bulbs is different. Since the lower bulb is warmer, the vapor pressure in it is higher.
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Toys for adults are often classed as novelties. Some products have a brief period as a novelty item when they are actually new, only to become an established, commonly used product, such as the Hula Hoop or the Frisbee. Others may have an educational element, such as a Crookes radiometer, Newton's cradle, or drinking bird. Humorous novelty signs
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