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Among the many phenomena which engaged the scientific imagination of Benjamin Franklin (1773) is the fact that a drop of oil, if placed on water, spreads out to form a film too thin even to produce prismatic colors but capable still of smoothing the waves. The author, formerly a professor of phy
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Among the many phenomena which engaged the scientific imagination of Benjamin Franklin (1773) is the fact that a drop of oil, if placed on water, spreads out to form a film too thin even to produce prismatic colors but capable still of smoothing the waves. The author, formerly a professor of phy