Snow, Benjamin Warner, 1860- · Madison, Wis. · leaf 224
Whenthis is withdrawn, a film of the solution, consisting almost ex-clusively of this superficial layer, covers the ring. If a loop ofthread, previously moistened with the soap solution, is nowthrown upon this film. Fig. 144, the loop will assume an irregu-lar form, and will remain in equilibrium,… … Fig. 144. The coutractiou of a soap film. the tension there disappears with the film, and the loop isimmediately pulled out into a circular form by the now un-balanced tension of the exterior parts of the film. A conception of the very great surface tension of pure water,and of the amount by which…
Physics
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