Text-book of general physics, for the use of colleges and scientific schools (1899)
Hastings, Charles Sheldon · Boston: Ginn & company · leaf 151
involved is quitesmall, its weight will exercise but little influence on theform of the film. Though the surface of a liquid behaves, in general, like astretched elastic membrane, it nevertheless differs from sucha membrane in two important particulars, namely, that liquidfilms, when unrestrained,… … The former of these statements may be verified by theobservation of a soap bubble which hasbeen blown on a funnel, as in Fig. 99.If the small end of the funnel be left open,the sphere will slowly contract, expellingthe air until the film has become a planeacross the mouth of the funnel. The…
Physics
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