Brechner, Claude H., 1887- [from old catalog] · Boston, New York [etc.] Allyn and Bacon · leaf 285
y have a skin or membrane stretched over their surfaces. Aneedle may be laid on the surface of water (Figure 300), ifcare is taken. The surface of the water is curved under theneedle just as if there were a cover over the water. Thisapparent skin or membrane is called surface tension. 274 MECHANICS…
Physics
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