Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 396
ced within theother,and heat be applied to the outer vessel in such a manner thatnone can reach the inner vessel, except through the water containedin the outer one, no steam bubbles can be made to arise in tiie innervessel, whilst, in the outer one, steam bubbles are formed rapidly.The fluid in… … 380 On the Efficacy of Perkins^ Circulators. the two vessels, although of the same temperature, are of differentspecific gravities, the mixture of water and bubbles in the outer ves-sel is lighter than the unmixed water in the inner vessel. Now if, of the inner vessel, the bottom be taken out,…
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