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Arthur M. Hillery got a US patent in 1945. Arthur M. Hillery suggested the use of acetone as working fluid. [21]a b c Perelman, Yakov (1972) [1936]. Physics for Entertainment. Vol.2. pp.175–178. ISBN 978-1401309213. Minto wheel - a heat engine consisting of a set of sealed chambers with volatile fluid inside just as in the drinking bird The Maxwell–Boltzmann distribution, which establishes that molecules in a given space at a given temperature vary in energy level, and therefore can exist in multiple phases (solid/liquid/gas) at a single temperature. The combined gas law, which establishes a proportional relationship between temperature and pressure exerted by a gas in a constant volume. If a glass of water is placed so that the beak dips into it on its descent, the bird will continue to absorb water and the cycle will continue as long as there is enough water in the glass to keep the head wet. However, the bird will continue to dip even without a source of water, as long as the head is wet, or as long as a temperature differential is maintained between the head and body. This differential can be generated without evaporative cooling in the head; for instance, a heat source directed at the bottom bulb will create a pressure differential between top and bottom that will drive the engine. The ultimate source of energy is the temperature gradient between the toy's head and base; the toy is not a perpetual motion machine.

Unlike the drinking bird, the lower tank was heated and the upper tank just air-cooled in this engine. Other than that, it used the same principle. The Iske brothers during that time got various patents on a related engine which is now known as Minto wheel. Heat pipe - a heat-transfer device that employs phase transition to transfer heat between two solid interfaces. Reading Australia: 'The Floating World' by John Romeril". www.australianbookreview.com.au. Archived from the original on 18 June 2015 . Retrieved 22 May 2022. Güémez, J.; Valiente, R.; Fiolhais, C.; Fiolhais, M. (December 2003). "Experiments with the drinking bird" (PDF). American Journal of Physics. 71 (12): 1257–1263. Bibcode: 2003AmJPh..71.1257G. doi: 10.1119/1.1603272. hdl: 10316/12328. Archived from the original (PDF) on 2011-07-01 . Retrieved 2012-02-19. In Australian contemporary playwright John Romeril's play The Floating World, drinking birds are a symbolic prop which represent the progression of Les' insanity. [26] They are referred to as "dippy birds" and are perhaps used to symbolize insanity due to Romeril's opinion that they are insane for their uselessness and repeatability.The ideal gas law, which establishes a proportional relationship between number of gas particles and pressure in a constant volume. The dichloromethane with a low boiling point (39.6°C (103.3°F) under standard pressure p o= 10 5 Pa– as the drinking bird is first evacuated, partially filled and sealed, the pressure and thus the boiling point in the drinking bird will be different), gives the heat engine the ability to extract motion from low temperatures. The drinking bird is a heat engine that works at room temperature. Thermodynamics - the branch of physics concerned with heat and temperature and their relation to energy and work