Publisher's Synopsis
Excerpt from Supplement to Merchant's Elementary Mechanics Dealing With the Phenomena of Surface Tension and the Flow of Liquids
Fill a wine - glass or a small tumbler brimful of water, and then carefully drop into it coins, buttons or other bits of metal. The water slowly rises above the top of the glass, appearing to be restrained within a skin which clings at its edges to the glass.
The surface becomes more and more convex until at last the skin breaks and the water runs over the edge.
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