Millikan, Robert Andrews, Gale, Henry Gordon · Boston : Ginn and Co. · leaf 117
sume the smallest possible surface, the area inside the loop mustof course become as large as possible. The circle is the figure whichhas the largest possible area for a given perimeter. Let a soap film be formed across the mouth of a clean 2-inch funnel,as in Fig. 97. The tendency of the film to… … Fig. 98. Some of the stages tlirougli which a slowly forming drop passes a stretched elastic membrane, is called surface totsion. The elas-tic nature of a film is illustrated in Fig. 98, which is from amotion-picture record of some of the stages through whicha slowly forming drop passes. 116.…
Physics
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